Question

for the same angle of incidence in media a b and c the angles of refraction are 20 30 amd 40 in which medium the velocity of light will be maximum​

Answer 1

the answer is 40° bcs (SINi IS DIRECTLY PROPORTIONAL TO V)

Answer 2

the velocity of light will be more in first medium (20)

since it is less deviated

Answer 3

By Snell's law,

   sin i/sin r = c/v

Since sin i and c are constant,

   sin r directly proportional to v

Therefore, the velocity of light will be highest in medium c because it has the highest angle of refraction and therefore lowest refractive index.