JEE PHYSICS MCQ: RAY OPTICS

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What causes chromatic aberration?

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Correct option: D

Variation of focal length of lens with colour

Option D (Variation of focal length of lens with colour) is correct because chromatic aberration arises from the fact that the refractive index of the lens material varies with the wavelength (color) of light, leading to different focal lengths for different colors.

More Questions from RAY OPTICS

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In refraction, light waves are bent on passing from one medium to the second medium, because, in the second medium A double convex lens is made of glass which has its refractive index 1,45 for violet rays and 1.50 for red rays. If the focal length for violet ray is

20 \mathrm{~cm}

, the focal length for red ray will be Which light rays undergoes two internal reflection inside a raindrop, which of the rainbow is formed? A piece of plane glass is placed on a word with letters of different colours. The letters which appear minimum raised are A dentist has a small mirror of focal length

16 {~mm}

. He views the cavity in the tooth of a patient by holding the mirror at a distance of

8 {~mm}

from the cavity. The magnification is All of the following statements are correct except