Physics MCQs

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3rd law of motion explains______________________?

A.effect of force

B.existence of pair of forces in nature

C.existence of a force

D.existence of two forces

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Nuclei having the same mass number but different atomic number are____________?

A.Isobars

B.Isomers

C.Isotopes

D.Isotones

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Work has the dimension as that of same as that of__________________?

A.angular momentum

B.linear momentum

C.power

D.torque

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Stokes law is applicable if body has __________shape?

A.Square

B.Spherical

C.Rough

D.Circular

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Two fog droplets have radius 2:3 their terminal velocities are_______________?

A.4:09

B.4:06

C.4.3

D.2:09

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X-rays are diffracted by a crystal but not by a diffraction grating because_____________?

A.The penetration power of X-rays is high in a diffraction grating

B.The ions in a crystal are well arranged

C.The lines in a diffraction grating cannot reflect X-rays.

D.The wavelengths of X-rays are of the same order of magnitude as the separation between atoms in a crystal

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The most fundamental of all sciences which provides basic principles and fundamental laws to other branches of science is_________?

A.information technology

B.chemistry

C.biology

D.physics

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1st law of motion gives the definition of _________________________?

A.motion

B.inertia

C.force

D.velocity

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Boyles law helds for ideal gases in________________?

A.adiabatic processes

B.isobaric processes

C.isochoric processes

D.isothermal processes

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In optic fiber transmission system _____________ are used regenerate the dim light signal?

A.Transformer

B.Laser

C.Diodes

D.Repeaters

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The escape velocity of a body in gravitational field of earth is independent of__________________?

A.the angle at which it is thrown

B.its mass

C.both its mass and the angle at which it is thrown

D.gravitational field of earth

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Two vectors are A = 3i^+2j^ -k^& B = 3i^-2j^ +k^ , then_____________?

A.B is anti-parallel to A

B.B has a negative magnitude

C.B is perpendicular to A

D.B is a negative vector of A

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What is the self-inductance of a coil in which an induced emf of 2V is set up when the current changes at the rate of 4 As-1 ?

A.0.5 mH

B.2.0H

C.0.5H

D.8.0H

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The centripetal acceleration produced in a rotating body is commonly due to change on_________of body?

A.direction

B.magnitude

C.None of these

D.both

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Materials that undergo plastic deformation before breaking are called __________________?

A.Polymers

B.Ductile

C.Amorphous

D.Brittle

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Physics MCQs

3rd law of motion explains______________________?

Nuclei having the same mass number but different atomic number are____________?

Work has the dimension as that of same as that of__________________?

Stokes law is applicable if body has __________shape?

Two fog droplets have radius 2:3 their terminal velocities are_______________?

X-rays are diffracted by a crystal but not by a diffraction grating because_____________?

The most fundamental of all sciences which provides basic principles and fundamental laws to other branches of science is_________?

1st law of motion gives the definition of _________________________?

Boyles law helds for ideal gases in________________?

In optic fiber transmission system _____________ are used regenerate the dim light signal?

The escape velocity of a body in gravitational field of earth is independent of__________________?

Two vectors are A = 3i^+2j^ -k^& B = 3i^-2j^ +k^ , then_____________?

What is the self-inductance of a coil in which an induced emf of 2V is set up when the current changes at the rate of 4 As-1 ?

The centripetal acceleration produced in a rotating body is commonly due to change on_________of body?

Materials that undergo plastic deformation before breaking are called __________________?

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