1.

refraction are 20°, 30° and 40 respectively, InFor the same angle of incidence in media A,B and C, the angles of refwhich medium will the velocity of light be maximum? Give reason in support of your answer.

Answer»

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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