The gravity created by some source is called

Question : The gravity created by some source is called

(A). large gravity

(B). artificial gravity

(C). gravitational force

(D). greater gravity

When the charge of 90C passes through wire in 1 hour 15 min then its current will be

Question : When the charge of 90C passes through wire in 1 hour 15 min then its current will be

(A). 10mA

(B). 20mA

(C). 30mA

(D). 40mA

The centripetal force has the same direction as the

Question : The centripetal force has the same direction as the

(A). centripetal velocity

(B). centripetal acceleration

(C). angular acceleration

(D). angular speed

The system international for describing units was built up from

Question : The system international for describing units was built up from

(A). 2 kind of units

(B). 3 kind of units

(C). 4 kind of units

(D). 5 kind of units

Every action has its equal and opposite reaction is newton's

Question : Every action has its equal and opposite reaction is newton's

(A). first law

(B). second law

(C). third law

(D). fourth law

If the number to be neglected is greater than 5 the retained number is

Question : If the number to be neglected is greater than 5 the retained number is

(A). increased

(B). decreased

(C). may increased

(D). may decreased

Ampere unit according to the SI units is a

Question : Ampere unit according to the SI units is a

(A). base unit

(B). derived unit

(C). international unit

(D). both base unit and derived unit

The current voltage graph of the ohmic devices is a

Question : The current voltage graph of the ohmic devices is a

(A). linear graph

(B). non linear graph

(C). parabolic graph

(D). hyperbola graph

The device named as a transistor has

Question : The device named as a transistor has

(A). emitter and collector equally doped

(B). emitter heavily doped

(C). collector heavily doped

(D). emitter and base equally doped

The system international for describing units was built up from

Question : The system international for describing units was built up from

(A). 2 kind of units

(B). 3 kind of units

(C). 4 kind of units

(D). 5 kind of units

When the charge of 90C passes through wire in 1 hour 15 min then its current will be

Question : When the charge of 90C passes through wire in 1 hour 15 min then its current will be

(A). 10mA

(B). 20mA

(C). 30mA

(D). 40mA

The gravity created by some source is called

Question : The gravity created by some source is called

(A). large gravity

(B). artificial gravity

(C). gravitational force

(D). greater gravity

The centripetal force has the same direction as the

Question : The centripetal force has the same direction as the

(A). centripetal velocity

(B). centripetal acceleration

(C). angular acceleration

(D). angular speed

Artificial satellites are the objects that orbit around the earth due to

Question : Artificial satellites are the objects that orbit around the earth due to

(A). earths mass

(B). gravity

(C). force

(D). earths weight

The cross product of AxB with Sin angle 180 would produce results equal to

Question : The cross product of AxB with Sin angle 180 would produce results equal to

(A). 0

(B). A

(C). AB

(D). 1

The time rate of change of velocity of the body is said to be

Question : The time rate of change of velocity of the body is said to be

(A). displacement

(B). distance

(C). acceleration

(D). velocity

If the density of the fluid is not constant it is said to be

Question : If the density of the fluid is not constant it is said to be

(A). viscous

(B). incompressible

(C). compressible

(D). both viscous and incompressible

Range of the projectile will be minimum when the angle of the projectile is

Question : Range of the projectile will be minimum when the angle of the projectile is

(A). 0

(B). 30

(C). 60

(D). 90

In a circular motion the direction of motion

Question : In a circular motion the direction of motion

(A). changes continuously

(B). changes after time

(C). never changes

(D). remains constant

If the number greater than 5 is to be neglected then the retained number is increased by

Question : If the number greater than 5 is to be neglected then the retained number is increased by

(A). 1

(B). 2

(C). 3

(D). 4

To assist the movement in water, the dolphins have

Question : To assist the movement in water, the dolphins have

(A). laminared bodies

(B). turbulent bodies

(C). fat bodies

(D). streamlined bodies

Rheostat can also be used as a

Question : Rheostat can also be used as a

(A). variable resistor

(B). potential divider

(C). barometer

(D). variable resistor as well as potential divider

Photo diodes applications include the

Question : Photo diodes applications include the

(A). logic circuits

(B). automatic switching

(C). networking

(D). both logic circuits and automatic switching

Base units of physical quantities given by the system international are

Question : Base units of physical quantities given by the system international are

(A). six

(B). seven

(C). eight

(D). nine

Time of flight of the body is given by the formula

Question : Time of flight of the body is given by the formula

(A). t 2vi*sin/g)

(B). t 2Vi + sin/g)

(C). t 2Vi-sin/g)

(D). t 2vi/g)

A vector whose magnitude is zero has a

Question : A vector whose magnitude is zero has a

(A). positive direction

(B). arbitrary direction

(C). negative direction

(D). positive and arbitrary direction

One of the physical quantities which is not a derived quantity

Question : One of the physical quantities which is not a derived quantity

(A). velocity

(B). acceleration

(C). force

(D). length

The quantity that remains unchanged in a transformer is

Question : The quantity that remains unchanged in a transformer is

(A). voltage

(B). current

(C). frequency

(D). both voltage and current

The moving charge experiences magnetic force because of

Question : The moving charge experiences magnetic force because of

(A). magnetic flux

(B). magnetic field

(C). magnetic current

(D). both magnetic flux and field

Quantum effects are important only when observing

Question : Quantum effects are important only when observing

(A). small objects

(B). very large objects

(C). atomic size objects

(D). atomic spectra

Ideal standard for measuring base quantities mainly involves

Question : Ideal standard for measuring base quantities mainly involves

(A). 2 characteristics

(B). 3 characteristics

(C). 4 characteristics

(D). 5 characteristics

If fluid is incompressible and it is steady then its mass is

Question : If fluid is incompressible and it is steady then its mass is

(A). increasing

(B). decreasing

(C). same

(D). conserved

At the pivot point the body with the mass m will have a torque by the

Question : At the pivot point the body with the mass m will have a torque by the

(A). force

(B). circle

(C). central point

(D). radius of the circle

Force required to slide one layer from another measures the

Question : Force required to slide one layer from another measures the

(A). viscosity

(B). friction

(C). gravity

(D). surface tension

INTELSAT IV telecommunication satellite has a capacity of handling

Question : INTELSAT IV telecommunication satellite has a capacity of handling

(A). 1 tv channels

(B). 2 tv channels

(C). 3 tv channels

(D). 4 tv channels

Current produces magnetic effect due to its

Question : Current produces magnetic effect due to its

(A). mechanical energy

(B). magnetic field

(C). electrical field

(D). chemical energy

In the inkjet printer the net charges are diverted by deflection plates towards

Question : In the inkjet printer the net charges are diverted by deflection plates towards

(A). paper

(B). nozzle

(C). gutter

(D). ink supplier

The body having mass 40 kg moving with the velocity of 3 m/s will have kinetic energy of

Question : The body having mass 40 kg moving with the velocity of 3 m/s will have kinetic energy of

(A). 120

(B). 150

(C). 160

(D). 180

Devices that does not obey ohm's law are called

Question : Devices that does not obey ohm's law are called

(A). ohmic devices

(B). non ohmic devices

(C). electric devices

(D). resistive devices

The resistor which is known as heat sensitive resistor is

Question : The resistor which is known as heat sensitive resistor is

(A). thermistor

(B). rheostat

(C). capacitor

(D). resistor

A charged particle will move through region getting undeflected if

Question : A charged particle will move through region getting undeflected if

(A). v /E

(B). v E

(C). v /B

(D). v + E

If the number greater than 5 is to be neglected then the retained number is increased by

Question : If the number greater than 5 is to be neglected then the retained number is increased by

(A). 1

(B). 2

(C). 3

(D). 4

The ratio of the forward voltage and a forward current is known as

Question : The ratio of the forward voltage and a forward current is known as

(A). steradian

(B). PN junction

(C). forward resistance

(D). forward junction

If the work done is greater than 90 angle then the work will be

Question : If the work done is greater than 90 angle then the work will be

(A). negative

(B). positive

(C). zero

(D). minimum

The product of resistance of 1 ohm and the capacitance of 1 farad is equal to

Question : The product of resistance of 1 ohm and the capacitance of 1 farad is equal to

(A). one minute

(B). one sec

(C). one volt

(D). one joule

The practical application of the mutual induction is

Question : The practical application of the mutual induction is

(A). transformer

(B). DC generator

(C). AC generator

(D). capacitor

Transformer is the device that works on the principle of

Question : Transformer is the device that works on the principle of

(A). self induction

(B). Lenz's law

(C). mutual induction

(D). motional emf

If the electric field lines are parallel to the area then the electric flux will be

Question : If the electric field lines are parallel to the area then the electric flux will be

(A). min

(B). max

(C). zero

(D). one

The torque of the couple is given by ILBxa in which a is a

Question : The torque of the couple is given by ILBxa in which a is a

(A). momentum

(B). moment arm

(C). arm

(D). moment of inertia

Acceleration produced in a body is the

Question : Acceleration produced in a body is the

(A). scalar quantity

(B). vector quantity

(C). physical quantity

(D). both scalar and vector quantity

Ohmic devices are the devices that consequently

Question : Ohmic devices are the devices that consequently

(A). obey ohms law

(B). doesn't obey ohms law

(C). violate ohms law

(D). satisfy ohms law

Filament bulbs are the best examples of the

Question : Filament bulbs are the best examples of the

(A). non ohmic devices

(B). resistive devices

(C). ohmic devices

(D). electric devices

The change from initial position to the final position is called

Question : The change from initial position to the final position is called

(A). displacement

(B). distance

(C). speed

(D). velocity

The number of field lines passing at certain area are known as

Question : The number of field lines passing at certain area are known as

(A). electric field

(B). electric flux

(C). electrostatics

(D). electric field lines

In the direction of Y-axis the projection of vector A is represented by the angle

Question : In the direction of Y-axis the projection of vector A is represented by the angle

(A). Cos

(B). Sin

(C). Tan

(D). both Cos and Sin

The heating effect produced by current is due to the

Question : The heating effect produced by current is due to the

(A). collision of electrons

(B). movement of electrons

(C). resistance in electrons

(D). lose of energy

If the fluid has constant density then it is said to be

Question : If the fluid has constant density then it is said to be

(A). thick

(B). in-viscous

(C). compressible

(D). incompressible

In a spaceship the objects revolving around the earth appears to be

Question : In a spaceship the objects revolving around the earth appears to be

(A). small

(B). large

(C). weightless

(D). massive

Base quantities can be measured according to the

Question : Base quantities can be measured according to the

(A). selected standards

(B). local standards

(C). global standards

(D). any units

According to the system international the amount of the substance is measured in

Question : According to the system international the amount of the substance is measured in

(A). moles

(B). kilograms

(C). meters

(D). candelas

Magnetic field is set up in region surrounding the current carrying

Question : Magnetic field is set up in region surrounding the current carrying

(A). rod

(B). wire

(C). blog

(D). plate

The law stated as flux is 1/Eo times the total charge is

Question : The law stated as flux is 1/Eo times the total charge is

(A). ohms law

(B). newton's law

(C). gauss's law

(D). coulombs law

The frictional effect between the layers of the flowing fluid is known as

Question : The frictional effect between the layers of the flowing fluid is known as

(A). viscosity

(B). friction

(C). gravity

(D). surface tension

In the system international the luminous intensity is measured in

Question : In the system international the luminous intensity is measured in

(A). moles

(B). kilograms

(C). meters

(D). candelas

The minimum velocity to put the satellite into orbital motion is

Question : The minimum velocity to put the satellite into orbital motion is

(A). 7.9 km/s

(B). 8.9 km/s

(C). 9 km/s

(D). 9.8 km/s

The typical rocket ejects the burnt gases at speeds of over

Question : The typical rocket ejects the burnt gases at speeds of over

(A). 2000 m/s

(B). 3000 m/s

(C). 3500 m/s

(D). 4000 m/s

Open loop gain of an amplifier can be represented by the formula

Question : Open loop gain of an amplifier can be represented by the formula
(A). vo/vi
(B). vo + vi
(C). vo-vi
(D). voxvi

Gravitational force is the force that is always

Question : Gravitational force is the force that is always

(A). repulsive

(B). attractive

(C). opposite

(D). both repulsive and attractive

Physical quantities that describe the laws of physics are divided into

Question : Physical quantities that describe the laws of physics are divided into

(A). 2 types

(B). 3 types

(C). 4 types

(D). 5 types

Errors that occur during the measurement of the quantities are of

Question : Errors that occur during the measurement of the quantities are of

(A). 2 types

(B). 3 types

(C). 4 types

(D). 5 types

Device that converts electrical energy into mechanical energy is

Question : Device that converts electrical energy into mechanical energy is

(A). AC generator

(B). DC generator

(C). cell

(D). DC motor

Height of the projectile is given by the formula

Question : Height of the projectile is given by the formula

(A). 2as f� - vi�

(B). 2 f� - vi�

(C). 2s f� - vi�

(D). 2a f� - vi�

For detecting the abnormal behavior of the brain the technique used is

Question : For detecting the abnormal behavior of the brain the technique used is

(A). EEG

(B). ECG

(C). ENG

(D). EFG

The potential difference between ends of conductor maintained by the battery is

Question : The potential difference between ends of conductor maintained by the battery is

(A). different

(B). constant

(C). zero

(D). one

The zero digit between two significant figures is

Question : The zero digit between two significant figures is

(A). significant

(B). non significant

(C). may not be significant

(D). maybe significant

The triangles are said to be isosceles if the angle between their arms are

Question : The triangles are said to be isosceles if the angle between their arms are

(A). equal

(B). opposite

(C). 90

(D). 0

Shark can detect the potential difference of its prey upto the sensitivity of

Question : Shark can detect the potential difference of its prey upto the sensitivity of

(A). micro volt

(B). mega volt

(C). pico volt

(D). nano volt

Hydrogen atom doesn't emit x-rays because

Question : Hydrogen atom doesn't emit x-rays because

(A). energy levels are close

(B). energy levels are far

(C). it ha small mass

(D). it has single electron

In photocell cesium coated oxidized silver cathode emits electron for

Question : In photocell cesium coated oxidized silver cathode emits electron for

(A). visible light

(B). ultraviolet

(C). infrared light

(D). x-rays

Alternative current generator is basically based upon

Question : Alternative current generator is basically based upon

(A). amperes law

(B). Lenz's law

(C). faradays law

(D). coulombs law

The chimney works best on the principle of

Question : The chimney works best on the principle of

(A). equation of continuity

(B). Bernoulli's equation

(C). light equation

(D). speed equation

The definition and standards of physical quantities were established in

Question : The definition and standards of physical quantities were established in

(A). 1910

(B). 1920

(C). 1950

(D). 1960

For gauss's law the point charges in closed surface must be distributed

Question : For gauss's law the point charges in closed surface must be distributed

(A). arbitrarily

(B). sequentially

(C). rational

(D). in line

The value of the constant K in the coulomb's law has the value of

Question : The value of the constant K in the coulomb's law has the value of

(A). 9 x 10^3

(B). 9 x 10^5

(C). 9 x 10^7

(D). 9 x 10^9

Photo diode is used for the detection of

Question : Photo diode is used for the detection of

(A). visible light

(B). invisible light

(C). no light

(D). both visible and invisible light

Ballmer series in the region of electromagnetic spectrum is in

Question : Ballmer series in the region of electromagnetic spectrum is in

(A). infrared region

(B). ultraviolet region

(C). visible region

(D). x-ray region

According to the theory of relativity mass of an object is

Question : According to the theory of relativity mass of an object is

(A). depends on particles

(B). speed of light

(C). volume of object

(D). area of object

The net force acting on a droplet of water is equal to the

Question : The net force acting on a droplet of water is equal to the

(A). weight-drag force

(B). weight + drag force

(C). weight*drag force

(D). weight/drag force

The unit vector in the direction of vector F = 6i + 5j is

Question : The unit vector in the direction of vector F = 6i + 5j is
(A). 6i + 5j/7.81
(B). 6i + 5j/6
(C). 6i + 5j/5
(D). 6i + 5j/61

The flux will be minimum when the electric field lines to the area are

Question : The flux will be minimum when the electric field lines to the area are

(A). parallel

(B). perpendicular

(C). at angle

(D). at distance

According to the SI units, the mass of the substance is measured in

Question : According to the SI units, the mass of the substance is measured in

(A). moles

(B). kilograms

(C). meters

(D). candelas

Physical quantities having only magnitude are called

Question : Physical quantities having only magnitude are called

(A). vector quantities

(B). scalar quantities

(C). mental quantities

(D). both vector and scalar quantities

The y-components of the vector are represented by the formula of

Question : The y-components of the vector are represented by the formula of

(A). Ay + By

(B). Ay-By

(C). Ay + Bx

(D). Ay-Bx

The gravitational and electric forces are inversely proportional to the

Question : The gravitational and electric forces are inversely proportional to the

(A). distance

(B). square of distance

(C). mass

(D). square of mass

Electric charges under the action of electric forces is called

Question : Electric charges under the action of electric forces is called

(A). electrostatic

(B). electric flux

(C). electric field

(D). electric field lines

Zero error produced by the measuring instruments is called

Question : Zero error produced by the measuring instruments is called

(A). frequent error

(B). systematic error

(C). random error

(D). frequent or random error

In alternative current generator AC current reverses its direction

Question : In alternative current generator AC current reverses its direction

(A). T times per second

(B). f times per second

(C). once/sec

(D). per sec

Equation (E1-IR1-E2-IR2 = 0) is the statement of

Question : Equation (E1-IR1-E2-IR2 ) is the statement of

(A). Kirchhoff's fourth rule

(B). Kirchhoff's third rule

(C). Kirchhoff's second rule

(D). Kirchhoff's first rule

The system international unit of the conductivity of the material is

Question : The system international unit of the conductivity of the material is

(A). ohm m

(B). ohm

(C). ohm-1m

(D). ohm-1m-1

According to the system international the unit of torque is

Question : According to the system international the unit of torque is

(A). newton meter

(B). newton per meter

(C). newton per meter square

(D). per newton meter

Geo-stationary satellites are the useful examples of the

Question : Geo-stationary satellites are the useful examples of the

(A). satellite motion

(B). satellite motion

(C). satellite gravity

(D). satellites

In the phenomena of work done by the variable force, the forces

Question : In the phenomena of work done by the variable force, the forces

(A). remain constant

(B). doesn't remain constant

(C). increases

(D). decreases

The formula that describes the statement of the coulombs law is

Question : The formula that describes the statement of the coulombs law is

(A). f q1q2/r�

(B). f 1q2/r�

(C). f q2/r�

(D). f q1q2/r

EMF is an abbreviation of the

Question : EMF is an abbreviation of the

(A). electromotive force

(B). electrical motive force

(C). electroni cmotive force

(D). both electromotive and electrical motive force

In the reading 12.7 first two digits are accurate while third one is

Question : In the reading 12.7 first two digits are accurate while third one is

(A). accurate

(B). precise

(C). doubtful

(D). correct

In a transistor the emitter current is

Question : In a transistor the emitter current is

(A). slightly more than collector

(B). slightly less than collector

(C). equal to the collector

(D). equal to base current

The diode characteristic curve is a plot between

Question : The diode characteristic curve is a plot between

(A). current and time

(B). voltage and time

(C). voltage and current

(D). current, voltage and time

The well known formula one racing car has a body with

Question : The well known formula one racing car has a body with

(A). laminared design

(B). turbulent design

(C). flat design

(D). streamlined design

The time rate of change of velocity of the body is represented as

Question : The time rate of change of velocity of the body is represented as

(A). (v1 + v2)/t

(B). (v1v2)/t

(C). (v1-v2)/t

(D). (v2-v1)/t

Change of current of one ampere/sec causes emf of 1 volt will be equal to

Question : Change of current of one ampere/sec causes emf of 1 volt will be equal to

(A). 1 henry

(B). 1 volt/m

(C). 1 ampere

(D). 1 joule

When no kinetic energy is lost the collision is said to be

Question : When no kinetic energy is lost the collision is said to be

(A). inelastic

(B). perfectly elastic

(C). elastic

(D). inelastic or perfectly elastic

The graphical representation of vectors is directed line segment with

Question : The graphical representation of vectors is directed line segment with

(A). direction

(B). point

(C). circle

(D). arrowhead

Number of digits that are reasonably sure are called

Question : Number of digits that are reasonably sure are called

(A). limitation of instruments

(B). systematic error

(C). frequent error

(D). significant figures

The induced current can be increased by

Question : The induced current can be increased by

(A). stronger field

(B). moving loop faster

(C). coil of less turns

(D). moving loop faster and with stronger field

When a body moves from one position to another the change is called

Question : When a body moves from one position to another the change is called

(A). displacement

(B). distance

(C). acceleration

(D). velocity

System international unit of work done is Newton meter which is known as

Question : System international unit of work done is Newton meter which is known as

(A). joule

(B). kelvin

(C). ampere

(D). candela

The gravitational force at the center is given by the formula of

Question : The gravitational force at the center is given by the formula of

(A). F Mm/r�

(B). F Mm/r

(C). F M/r�

(D). F m/r�

Work done by a body is said to be a quantity known as

Question : Work done by a body is said to be a quantity known as

(A). scalar quantity

(B). vector quantity

(C). physical quantity

(D). both scalar and vector

Repeated measurement having different values are the

Question : Repeated measurement having different values are the

(A). random error

(B). frequent error

(C). systematic error

(D). random and frequent error

If a vector gets multiplied by a positive number then its direction

Question : If a vector gets multiplied by a positive number then its direction

(A). remain same

(B). reversed

(C). gets half

(D). gets double

The electric instrument used to measure current in amperes is known as

Question : The electric instrument used to measure current in amperes is known as

(A). ammeter

(B). voltmeter

(C). ohmmeter

(D). avometer

The whole world can be covered with

Question : The whole world can be covered with

(A). 2 geo-stationary satellites

(B). 3 geo-stationary satellites

(C). 4 geo-stationary satellites

(D). 5 geo-stationary satellites

Physical quantity that has magnitude and direction as well is known as

Question : Physical quantity that has magnitude and direction as well is known as

(A). mass

(B). time

(C). velocity

(D). temperature

The scalar product of the two vectors is also known as

Question : The scalar product of the two vectors is also known as

(A). vector product

(B). dot product

(C). point product

(D). both vector and dot product

The first human satellite of the earth was the man named as

Question : The first human satellite of the earth was the man named as

(A). Bruce McCandless

(B). mark Bruce

(C). ken Bruce

(D). Bruce Hilton

The electromotive force of a battery can be defined with the formula of

Question : The electromotive force of a battery can be defined with the formula of

(A). E R

(B). E R + I

(C). E R + r

(D). E R + Ir

The branch of science that deals with the natural phenomena is called

Question : The branch of science that deals with the natural phenomena is called

(A). physics

(B). mathematics

(C). chemistry

(D). English

The tidal pull of the moon can distort the continents pulling up and down upto

Question : The tidal pull of the moon can distort the continents pulling up and down upto

(A). 25 cm

(B). 30 cm

(C). 35 cm

(D). 40 cm

The value of one electric volt is equivalent to the value of

Question : The value of one electric volt is equivalent to the value of

(A). 1.8 x 10-19J

(B). 1.9 x 10-19J

(C). 1.6 x 10-19J

(D). 2.1 x 10-19J

From the equations of the distance one that is correct is

Question : From the equations of the distance one that is correct is

(A). Vf i + 2as

(B). Vf� i� + as

(C). Vf� i� + 2a

(D). Vf� i� + 2as

Error that occurs due to equally affected measurements is called

Question : Error that occurs due to equally affected measurements is called

(A). random error

(B). systematic error

(C). frequent error

(D). precision

The rate of flow of charge through cross sectional area is known as

Question : The rate of flow of charge through cross sectional area is known as

(A). current

(B). voltage

(C). meter

(D). acceleration

This whole world is composed of small particles that are made up of

Question : This whole world is composed of small particles that are made up of

(A). electrons

(B). protons

(C). cathode

(D). electrons and protons

Power of the machine when the work done is 30j in a time interval 5s will be

Question : Power of the machine when the work done is 30j in a time interval 5s will be

(A). 120W

(B). 125W

(C). 145W

(D). 150W

If the body is in rest or in uniform velocity it is said to be in

Question : If the body is in rest or in uniform velocity it is said to be in

(A). rest

(B). uniform motion

(C). equilibrium

(D). constant force

Inelastic collision is the collision in which kinetic energy is

Question : Inelastic collision is the collision in which kinetic energy is

(A). conserved

(B). not conserved

(C). increases

(D). decreases

Torricelli's theorem is one of the applications of the

Question : Torricelli's theorem is one of the applications of the

(A). equation of continuity

(B). Bernoulli's equation

(C). light equation

(D). speed equation

The voltage of the device having resistance 5 ohm and current 4ampere will be

Question : The voltage of the device having resistance 5 ohm and current 4ampere will be

(A). 10V

(B). 15V

(C). 20V

(D). 25V

The color of the light emitted by LED depends on

Question : The color of the light emitted by LED depends on

(A). its forward bias

(B). its reverse bias

(C). forward current

(D). semiconductor material

Newton's law of motions were stated by the scientist named as

Question : Newton's law of motions were stated by the scientist named as

(A). Isaac newton

(B). john newton

(C). newton ken

(D). Eric newton

Candela unit according to the system international is a

Question : Candela unit according to the system international is a

(A). base unit

(B). derived unit

(C). supplementary unit

(D). international unit

The ability of capacitor to store the charge is measured as its

Question : The ability of capacitor to store the charge is measured as its

(A). performance

(B). resistance

(C). capacitance

(D). durability

The turning effect produced by the object depends upon the object's

Question : The turning effect produced by the object depends upon the object's

(A). radius

(B). circumference

(C). length

(D). width

According to the Bernoulli's equation where the speed is high the pressure will be

Question : According to the Bernoulli's equation where the speed is high the pressure will be

(A). high

(B). low

(C). min

(D). max

Sunlight is directly converted into electrical energy by using

Question : Sunlight is directly converted into electrical energy by using

(A). cells

(B). solar cells

(C). electric generator

(D). electrical energy

If a vector gets multiplied by a negative number then its direction

Question : If a vector gets multiplied by a negative number then its direction

(A). remain same

(B). gets reversed

(C). gets half

(D). gets double

Bohr's atomic model is based upon

Question : Bohr's atomic model is based upon

(A). Einstein's relativistic theory

(B). classical theory

(C). planks quantum theory

(D). both classical and planks quantum theory

The printer that uses electric charges is called

Question : The printer that uses electric charges is called

(A). inkjet printer

(B). laser printer

(C). deskjet printer

(D). both inkjet and laser printer

The energy of a body is of the form known as

Question : The energy of a body is of the form known as

(A). kinetic energy

(B). potential energy

(C). physical energy

(D). both kinetic and potential energy

The wheel will have both rotational and translational kinetic energies when it

Question : The wheel will have both rotational and translational kinetic energies when it

(A). stops

(B). moves

(C). rolls

(D). jumps

The ratio of minimum to maximum wavelength in Ballmer series is

Question : The ratio of minimum to maximum wavelength in Ballmer series is

(A). 5:09

(B). 5:36

(C). 1:04

(D). 3:04

In system international the unit of mutual inductance is

Question : In system international the unit of mutual inductance is

(A). henry

(B). VsA^-1

(C). Wb

(D). both henry and VsA^-1

The vector's x-components are represented by the formula of

Question : The vector's x-components are represented by the formula of

(A). Ax + Bx

(B). Ax + By

(C). Ax-Bx

(D). Ax-By

Force due to water flow is represented by the formula

Question : Force due to water flow is represented by the formula

(A). F -m/t)v

(B). F -t)v

(C). F -m)v

(D). F -m/t)

The volume of the droplet having radius 0.1m will be

Question : The volume of the droplet having radius 0.1m will be

(A). 4.2 x 10-3

(B). 2 x 10-3

(C). 5.2 x 10-3

(D). 4 x 10-3

The angle that lies between two vectors A = 5 + 1 and B = 2 + 4 is

Question : The angle that lies between two vectors A + 1 and B + 4 is

(A). 52

(B). 51

(C). 50

(D). 45

One of the quantities which is not a physical quantity is

Question : One of the quantities which is not a physical quantity is

(A). mass

(B). stress

(C). length

(D). velocity

The change in potential energy is measured as the difference of

Question : The change in potential energy is measured as the difference of

(A). mgf

(B). mgh

(C). mg

(D). mgt

The field lines parallel to the sides of box will have flux that is

Question : The field lines parallel to the sides of box will have flux that is

(A). 1

(B). min

(C). 0

(D). max

The density of the aluminum is round about equal to

Question : The density of the aluminum is round about equal to

(A). 2.7g/ cm�

(B). 2.7 kg/ cm�

(C). 2.7g/m�

(D). 2.7 kg/m�

Cross sectional area of the water hose having radius of 0.2m is

Question : Cross sectional area of the water hose having radius of 0.2m is

(A). 1.1

(B). 0.23

(C). 0.125

(D). 1.3

Magnetic force acting on a charge is given by the formula

Question : Magnetic force acting on a charge is given by the formula

(A). q(V-B)

(B). q(V + B)

(C). q(V/B)

(D). q(VxB)

The gate having output 1 only when one of its input is 1 is called

Question : The gate having output 1 only when one of its input is 1 is called

(A). AND

(B). NOT

(C). OR

(D). NOR

The time rate of change of displacement is known as

Question : The time rate of change of displacement is known as

(A). displacement

(B). distance

(C). speed

(D). velocity

The charge on an electron was discovered by Millikan in the year

Question : The charge on an electron was discovered by Millikan in the year

(A). 1900

(B). 1901

(C). 1902

(D). 1909

Natural defect of the person's sense is the

Question : Natural defect of the person's sense is the

(A). random error

(B). systematic error

(C). uncertainty

(D). frequent error

The dot product of A.B with angle 0 would produce results equal to

Question : The dot product of A.B with angle 0 would produce results equal to

(A). A.B

(B). A

(C). AB

(D). B

Time rate of change of momentum of a body is equal to

Question : Time rate of change of momentum of a body is equal to

(A). displacement

(B). applied force

(C). speed

(D). velocity

The constant of equation of continuity is known as

Question : The constant of equation of continuity is known as

(A). flow rate

(B). friction

(C). fluid flow

(D). surface tension

The equation d = r2-r1 is referred to as the body's

Question : The equation d 2-r1 is referred to as the body's

(A). displacement

(B). work

(C). speed

(D). acceleration

Curved flights at high speed requires centripetal force that is

Question : Curved flights at high speed requires centripetal force that is

(A). small

(B). zero

(C). large

(D). maximum

The angular momentum of the moving body is represented by the symbol

Question : The angular momentum of the moving body is represented by the symbol

(A). L

(B). P

(C). M

(D). T

The cylinder has moment of inertia given by the formula of

Question : The cylinder has moment of inertia given by the formula of

(A). (ml�)

(B). mr

(C). 1/2(mr)

(D). 5(mr�)

For detection of brain's behavior EEG and ECG use

Question : For detection of brain's behavior EEG and ECG use

(A). graph

(B). sensors

(C). electrodes

(D). both graph and sensors

The liquid that is used to conduct current is called

Question : The liquid that is used to conduct current is called

(A). electrolysis

(B). electrode

(C). electrolyte

(D). cathode

The density of the air is round about equal to

Question : The density of the air is round about equal to

(A). 1.2041 kg/m�

(B). 1.3041 kg/m�

(C). 1.4041 kg/m�

(D). 1.5041 kg/m�

The product of the force and moment arm is known as

Question : The product of the force and moment arm is known as

(A). potential difference

(B). voltage

(C). torque

(D). inertia

A geo-stationary satellite orbits around the earth once

Question : A geo-stationary satellite orbits around the earth once

(A). per month

(B). per week

(C). per day

(D). per hour

Physics is the branch of science the name PHYSICS means

Question : Physics is the branch of science the name PHYSICS means

(A). matter

(B). material

(C). nature

(D). galaxy

Atomic spectra is an example of

Question : Atomic spectra is an example of

(A). line spectra

(B). continuous spectra

(C). band spectra

(D). both line and continuous spectra

The unit of gravitational constant G has the dimensions

Question : The unit of gravitational constant G has the dimensions

(A). ML^3T^-2

(B). M^-1L^3T^-2

(C). M^-1T^-2

(D). M^-1L^3T

If the work done has angle equal to 90 then the work will be

Question : If the work done has angle equal to 90 then the work will be

(A). positive

(B). negative

(C). zero

(D). maximum

The area under the velocity-time graph is equal to the

Question : The area under the velocity-time graph is equal to the

(A). 1/2(VxT)

(B). (Vxt)

(C). 1/2(V + t)

(D). (V + t)

Moment of inertia of the thin rod is given by the formula of

Question : Moment of inertia of the thin rod is given by the formula of

(A). 1/12(ml�)

(B). mr�

(C). 2(mr)

(D). 2/5(mr�)

One of the physical quantities which is not a base quantity is

Question : One of the physical quantities which is not a base quantity is

(A). length

(B). mass

(C). force

(D). time

The typical rocket consumes fuel on the amount of

Question : The typical rocket consumes fuel on the amount of

(A). 8000 kg/s

(B). 9000 kg/s

(C). 10000 kg/s

(D). 11000 kg/s

The rotational kinetic energy of the disc is given by

Question : The rotational kinetic energy of the disc is given by

(A). 1/4(mv�)

(B). 1/2(mv�)

(C). 1/8(mv�)

(D). 1/6(mv�)

The product of the mass and the velocity is known as

Question : The product of the mass and the velocity is known as

(A). impulse

(B). distance

(C). momentum

(D). velocity

Energy from the gravitational field is the energy obtained from

Question : Energy from the gravitational field is the energy obtained from

(A). wind

(B). biomass

(C). coal

(D). tides

One of the energies that is known as renewable energy is

Question : One of the energies that is known as renewable energy is

(A). coal

(B). oil

(C). tides

(D). natural gas

Energy that is stored in an inductor can be represented by

Question : Energy that is stored in an inductor can be represented by

(A). 1/2(L�I)

(B). 1/2(LI�)

(C). L(I/T)

(D). LI

An ideal black body is

Question : An ideal black body is

(A). an ideal absorber

(B). an ideal radiator

(C). an ideal reflector

(D). an ideal absorber as well as an ideal radiator

Unit vectors are normally used to represent other vector's

Question : Unit vectors are normally used to represent other vector's

(A). direction

(B). place

(C). velocity

(D). magnitude

If the value of moment arm is zero then the torque produce will be

Question : If the value of moment arm is zero then the torque produce will be

(A). 1

(B). 0

(C). doubled

(D). decreased

In the history of the earth the more coal has been used since

Question : In the history of the earth the more coal has been used since

(A). 1930

(B). 1935

(C). 1940

(D). 1945

The point of intersection of two coordinate axes is called

Question : The point of intersection of two coordinate axes is called

(A). mid

(B). origin

(C). circumference

(D). radius

Transformer is the device that is being used in

Question : Transformer is the device that is being used in

(A). DC circuit

(B). AC circuit

(C). DC motor

(D). both AC and DC circuit

The self induced emf sometimes also known as

Question : The self induced emf sometimes also known as

(A). induced emf

(B). deduce emf

(C). back emf

(D). both induced and deduce emf

In cathode ray oscilloscope the spots are formed on screen having

Question : In cathode ray oscilloscope the spots are formed on screen having

(A). anode

(B). cathode

(C). grid

(D). matrix

One that is not a non conservative force is

Question : One that is not a non conservative force is

(A). frictional force

(B). gravitational force

(C). air resistance

(D). normal force

Potential difference of any device can be measured with the instrument known as

Question : Potential difference of any device can be measured with the instrument known as

(A). voltmeter

(B). potentiometer

(C). CRO

(D). galvanometer

A metallic ring is attached to the wall of the room when the north pole of magnet is brought near the ring then the induced current in ring is

Question : A metallic ring is attached to the wall of the room when the north pole of magnet is brought near the ring then the induced current in ring is

(A). zero

(B). clock-wise

(C). anticlock-wise

(D). infinite

If the counter clockwise is taken as positive then anti clockwise will be taken as

Question : If the counter clockwise is taken as positive then anti clockwise will be taken as

(A). positive

(B). negative

(C). doubled

(D). halved

Water flowing through hose having diameter 1 cm at speed of 1 m/s if water is to emerge at 21 m/s then diameter of the nozzle is

Question : Water flowing through hose having diameter 1 cm at speed of 1 m/s if water is to emerge at 21 m/s then diameter of the nozzle is

(A). 0.2 cm

(B). 0.1 cm

(C). 0.02 cm

(D). 0.01 cm

Computer which is a product of chips has been developed from basic idea of

Question : Computer which is a product of chips has been developed from basic idea of

(A). physics

(B). operating systems

(C). micro controllers

(D). English

The value of magnetic field that will cause a max force of 7 x 10-3N on a 20 cm wire carrying current of 10A will be

Question : The value of magnetic field that will cause a max force of 7 x 10-3N on a 20 cm wire carrying current of 10A will be

(A). 3.5 x 10^-3 T

(B). 1.5 x 10^-3 T

(C). 4.5 x 10^-3 T

(D). 2.5 x 10^-3 T

The multiplication of two vectors is named as

Question : The multiplication of two vectors is named as

(A). scalar multiplication

(B). vector multiplication

(C). point multiplication

(D). both scalar and vector multiplication

The cathode ray oscilloscope displays the graph of the waveforms based on

Question : The cathode ray oscilloscope displays the graph of the waveforms based on

(A). current

(B). voltage

(C). potential difference

(D). temperature

A galvanometer of 50 ohm gives full scale deflection with 2mA current as to convert it into ammeter the range of 10A is connected with it then the shunt resistance will be

Question : A galvanometer of 50 ohm gives full scale deflection with 2mA current as to convert it into ammeter the range of 10A is connected with it then the shunt resistance will be

(A). 0.1 ohm

(B). 0.2 ohm

(C). 0.01 ohm

(D). 0.02 ohm

According to special theory of relativity which one is not an absolute quantity

Question : According to special theory of relativity which one is not an absolute quantity

(A). time

(B). mass

(C). height

(D). both time and mass

In op-amp the signal applied at inverting terminal appears at the output terminal with a phase

Question : In op-amp the signal applied at inverting terminal appears at the output terminal with a phase

(A). 0

(B). 90

(C). 180

(D). 45

Current of 0.75A when a battery of 1.5V is connected to the wire of 5m having cross sectional area 2.5 x 10-7 m? will have the resistivity

Question : Current of 0.75A when a battery of 1.5V is connected to the wire of 5m having cross sectional area 2.5 x 10-7 m� will have the resistivity

(A). 1 x 10-7

(B). 1.1 x 10-7

(C). 2 x 10-7

(D). 2.1 x 10-7

If the body accelerating from rest to angular velocity of 45 rev/min in a time of 1.6s then its angular acceleration will be

Question : If the body accelerating from rest to angular velocity of 45 rev/min in a time of 1.6s then its angular acceleration will be

(A). 6.6 x 10-9 rad

(B). 6 x 10-9 rad

(C). 7.6 x 10-9 rad

(D). 8 x 10-9 rad

If a current carrying conductor is placed in uniform magnetic field parallel to direction of field then the force experienced by conductor will be

Question : If a current carrying conductor is placed in uniform magnetic field parallel to direction of field then the force experienced by conductor will be

(A). ILBCos

(B). ILB

(C). zero

(D). ILBSin