Kindly answer Q 47 The critical angle for a beam of light passing from a diamond into the - Physics - Ray Optics And Optical Instruments

Question

Kindly answer
Q 47 The critical angle for a beam of light passing from a diamond
into the air is 24 4 ° This means that any light rays that
strike the surface interface between the diamond and the air with
an angle less than
24 4 ° are
(A) completely reflected
(B) partially reflected and partially refracted
(C) completely absorbed
(D) partially absorbed and partially transmitted
(E) completely transmitted

Shobhit Mittal · Accepted Answer

Dear Student,critical angle is that angle for a  medium interface that when the angle larger then the critical angle then no ray will pass the medium interface
so if the ange is less than critical angle then partial reflection takes place no complete reflection 
so the ray partially reflected and the partially refracted
Regards