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
Physics MCQs with Answers
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 indidence only D. all thickness nature and angle of incidence
Light reaches the earth form sun in nearly____________________?
A. 15 minutes B. 10 minutes C. 8 minutes D. 8 minutes 30 seconds
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
Central spot of Newtons rings __________________?
A. bright B. dark for large wavelength C. dark D. bright for large wavelength
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
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