Question

Same angle of incidence in media p,q,r angles of refraction

Answer 1

Answer:

For the same angle of incidence in media P, Q and R, the angles of refraction ate 45°,35° and 15° respectively

For the same angle of incidence in media P, Q and & the angles of refraction is the minimum for the medium R. Hence velocity of light would be minimum in R as c/v=sin i/sin r .

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Answer 2

Answer:

Explanation:

We know that n = sin i/sin r

For the same angle of incidence i, the refractive index will be maximum for the medium for which 'r ’ is minimum i.e., for the medium R.

Further, we know that n = c/v

Thus, velocity of light is maximum in a medium for which n is minimum i.e., for the medium R. Velocity of light is minimum in the medium R.