question_answer

A beam of light propagating in medium A with index of refraction n  passes across an interface into medium B with index of refraction n. The angle of incidence is greater than the angle of refraction; v and v denotes the speed of light in A and B. Then which of the following is true

A)            v > v  and n > n

B)            v > v  and  n < n

C)            v < v  and  n > n

D)            v < v  and  n < n