The path of a light ray, from air to three different media A, B and C for a given angle of incidence. Study the diagram carefully and answer the following questions.

For which ray of light, incident on any of the three media, will these three media show identical behaviour?

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They cannot show identical behaviour

For laser light

For white light

None

answer is A.

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Detailed Solution

In the above case, the three media cannot show identical behaviour.
The bending of light from one medium to another medium is known as refraction. Any variation in the velocity of light in a different medium can cause the refractive index to be different. Here A, B, and C are three different media with different properties and different refraction angles. For any type of light, they cannot show identical behaviour as the optical densities are different.

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