Question

A ray of light strikes the glass slab at an angle of 900 What is the angle of incidence and the angle of refraction?

Answer 1

ANSWER

If the rays of light are incident upon the glass surface perpendicularly, or at 90 degree angle to the surface, the rays will pass through without changing direction. In this case, the angle of incidence and angle of refraction are always zero.

MARK ME AS BRAINIEST ..

Answer 2

900-500=400 angle of incidence