Physics 914 MCQs [All-Courses]

Physics is a core science subject that deals with the study of matter, energy, motion, force, heat, light, electricity, magnetism, and modern physics concepts. It plays a vital role in competitive exams such as PPSC, FPSC, NTS, OTS, KPPSC, BPSC, AJKPSC, CSS, and PMS, where questions test conceptual understanding, numerical problem-solving, and application of laws and formulas.

The velocity of light was determined accurately by_______________?

A Newton

B Michelson

C Huygen

D Young

Review Detailed Answer

Correct Answer: Michelson

Two sources of light are coherent if they emit rays of_______________?

A same wavelength

B same amplitude of vibration

C same wave length with constant phase difference

D same amplitude and wavelength

Review Detailed Answer

Correct Answer: same wave length with constant phase difference

The locus of all points in a medium having the same phase of vibration is called____________________?

A crest

B trough

C wavelength

D wave front

Review Detailed Answer

Correct Answer: wave front

Central spot of Newtons rings __________________?

A bright

B dark for large wavelength

C dark

D bright for large wavelength

Review Detailed Answer

Correct Answer: bright

According to Einstein light travels form one place to another in the form of ________________?

A waves

B particles

C photons

D it was not his discovery

Review Detailed Answer

Correct Answer: photons

Light reaches the earth form sun in nearly____________________?

A 15 minutes

B 10 minutes

C 8 minutes

D 8 minutes 30 seconds

Review Detailed Answer

Correct Answer: 8 minutes

When light incident normally on thin film the path difference depends upon ________________?

A thickness of the film only

B nature of the film only

C angle of indidence only

D all thickness nature and angle of incidence

Review Detailed Answer

Correct Answer: all thickness nature and angle of incidence

Which is not optically active ?

A sugar

B tartaric acid

C water

D sodium chlorate

Review Detailed Answer

Correct Answer: water

Crystals of a material can behave as_________________?

A Convex lens

B Interferometer

C Diffraction grating

D Concave

Review Detailed Answer

Correct Answer: Diffraction grating

In the shadow of a ball the central portion appears bright that happens due to_________________?

A Interference

B Diffraction

C Polarization

D Refraction

Review Detailed Answer

Correct Answer: Diffraction

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Physics 914 MCQs [All-Courses]

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All Topics 914

The velocity of light was determined accurately by_______________?

Two sources of light are coherent if they emit rays of_______________?

The locus of all points in a medium having the same phase of vibration is called____________________?

Central spot of Newtons rings __________________?

According to Einstein light travels form one place to another in the form of ________________?

Light reaches the earth form sun in nearly____________________?

When light incident normally on thin film the path difference depends upon ________________?

Which is not optically active ?

Crystals of a material can behave as_________________?

In the shadow of a ball the central portion appears bright that happens due to_________________?