Physics MCQs: Most Important Questions for Exams

McqsTestz.com has uploaded a comprehensive collection of Physics MCQs covering a wide range of topics including mechanics, thermodynamics, electromagnetism, optics, modern physics, waves, fluids, and more. Perfect for students preparing for exams such as matriculation, intermediate, competitive tests, Lecturer and university-level assessments.

Physics MCQs

The velocity of sound is greatest in___________________?

A. Water

B. air

C. copper

D. ammonia

In addition to the daughter nucleus and an electron or positron, the products of a beta decay

A. Neutrons

B. Neutrino

C. Alpha particle

D. Proton

Newton’s first law of motion gives the concept of _________?

A. Energy

B. Work

C. Inertia

D. Momentum

The unit of power is _________?

A. watt

B. Joule

C. Newton

D. Pascal

Force 100N is applied on a wire produces extension 5mm in it. Energy stored in it is

A. 0.125 J

B. 0.250 J

C. 0.50 J

D. 1 J

A___________has no size or shape, just position.

A. line

B. bottom

C. point

D. vertex

The synopsis of Einstein’s equation E = mc² is that

A. The faster you move, the lighter you get

B. The faster you move, the heavier you get

C. The slower you move, the heavier you get

D. None of the above

Neutron was discovered by: _________?

A. Chadwick

B. Rutherford

C. Neil Bohr

D. Einstein

A bird sitting on a high tension electric wire does not get electrocuted because:

A. Sit has high resistance

B. the body is earthed

C. it does not form a closed path for the flow of current

D. its feet are good insulators

Rainbow is seen after rain because of hanging molecules of water which act as __________?

A. Lens

B. Prism

C. Mirror

D. Slabs

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