Choose the correct alternative and rewrite the following sentence. A ray of light strikes the glass slab at an angle of $50^\circ$. What is the angle of incidence?

Question

KollegeApply · Accepted Answer

$40^\circ$ The ray of light strikes at an angle of 50 with the horizontal. The angle of incidence is with respect to the normal, so the angle of incidence is $90^\circ$ − $50^\circ$ = $40^\circ$.

AChoose Your Answer