Test Preparation on Ray Optics-II-Physics Test Series For NEET 2020
1.
A light wave has a frequency of 4x1014 Hz and a wavelength of 5x10-7 metres in a medium. The refractive index of the medium is
2.
3.
Light travels through a glass plate of thickness t and having refractive index n. If c is the velocity of light in vacuum, the time taken by the light to travel this thickness of glass is
4.
A microscope is focussed on a mark on a piece of paper and
then a slab of glass of thickness 3 cm and refractive index
1.5 is placed over the mark. How should be microscope
moved to get the mark in focus again
5.
In refraction, light waves are bent on passing from one
medium to the second medium, because, in the second
medium