According to the theory of light, the speed of light in liquids is less than in

Question

According to the theory of light, the speed of light in liquids is less than in free space greater than in free space the same as in free space zero, since particles cannot moves in liquids A clear sheet of polaroid is placed on top of a similar sheet so that their polarizing axes an angle of 30 degree with each other. The ratio of the intensity of emerging light to incident unpolarized light is 0.25 0.33 0.75 0.37 Light which is incident from air is refracted through a transparent material. If the angle of incidence is 30degree, and the angle of refraction is 20degree, what is the index of refraction of the material 2.4 1.3 1. 1.8

Explanation / Answer

18. (A)

19. (C)

20. (C)

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