Question

the angle of refraction is equal toangle of incidence ,when the light ray is travelling A)from rarer to denser medium B)from denser to rarer medium C)normal to the surface of seperation between two media D)all the above​

Answer 1

Answer:

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Explanation:

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Answer 2

C)normal to the surface of seperation between two media

additional

The incident ray,the refracted ray and the normal to the refracting surface at the point of incidence lie in the same plane.

For a given pair of media and for a given colour of light the ration between the sine of angle of incidence to the sine of refraction is a constant.This constant is known as refractive index of the second medium with respect to the first medium.

When a ray of light passes through a glass slab, ∠i,∠r and the normal all lie in the same plane.

When a ray of light passes from one medium to another, here from air to glass or glass to air, the ratio

sinr

sini

=constant.

solution

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