Question

For the same angle of incidence in media ABC the angle of refraction are 20 degree 30 degree 40 degree respectively in which medium will the velocity of light be maximum give reason to support your answer

Answer 1

As sini/sinr = u

More the r more the sinr therefore lesser will be refractive index

As refractive index is inversely proportional to speed in medium

therefore lesser the refractive index more thr speed

Therefore 40 degree will have maximum speed.

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