Question

Topics: Physics, Optics

A ray 



R1

 is incident on the plane surface of the glass slab (kept in air) of refractive index 



2

 at an angle of incidence equal to the critical angle for this air glass system. The refracted ray 



R2

 undergoes partial reflection and refraction at the other surface. The angle between reflected ray 



R3

 and the refracted ray 



R4

 at that surface is: 





45o



135o



105o



75o​

Answer 1

Answer:

omg how many questions are there