Physics MCQs

Physics Mcqs for Test Preparation from Basic to Advance. Physics Mcqs are from the different sections of Physics. Here you will find Mcqs of Physics and quantum physics subject from Basic to Advance. Which will help you to get higher marks in Physics subject. These Mcqs are useful for students and job seekers i.e MCAT ECAT ETEA test preparation, PPSC Test, FPSC Test, SPSC Test, KPPSC Test, BPSC Test, PTS, OTS, GTS, JTS, CTS, NTS.

When one mirror of a Michelson Interferometer has moved a distance of 0.5 mm we observe 2000 fringes. What will be the wavelength of light used?

A. 5000 nm
B. 5000A
C. 500m
D. 2000um

Wavelength of X-rays falling at glancing angle of 30? on a crystal with atmic spacing 2 x 10-10 for the fist order diffraction is________________?

A. 4 x 10-10 m
B. 2 x 10-10 m
C. 0.02×10-10m
D. 20×10-10m

In a plane polarized light _________________?

A. vibration in all direction
B. vibration in two mutually perpendicular directions
C. vibration takes place in a direction perpendicular to the direction of propagation of light
D. no vibration at all

Which one of the following cannot be polarized ?

A. radio waves
B. ultraviolet rays
C. X-rays
D. sound waves

In monochromatic red light a blue book will probably appear to be_________________?

A. black
B. purple
C. green
D. no scientific reasoning available

In double slit experiment if one of the two slit is covered then________________?

A. no interference fringes are observed
B. no diffraction fringes are observed
C. no fringes observed
D. interference pattern not disturbed

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

A. Interference
B. Diffraction
C. Polarization
D. Refraction

Crystals of a material can behave as_________________?

A. Convex lens
B. Interferometer
C. Diffraction grating
D. Concave

Which is not optically active?

A. sugar
B. tartaric acid
C. water
D. sodium chlorate

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 incidence only
D. all thickness nature and angle of incidence

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