Question

b) When a ray of light travelling in the air falls on a rectangular glass slab at an angle
of 45° with the normal to the surface, then the angle made by the refracted ray
with the normal inside the glass slab is equal to 30. What is the refractive index
of the glass slab?​

Answer 1

Answer:

rectilinar propagated

Answer 2

Answer:

root 2 is ur answer

Explanation:

1. according to sneils law usini=usinr 1sin45=usin30