Question

42. How does the light have to enter the glass :
(a) to produce a large amount of bending?
(b) for no refraction to happen?​

Answer 1

Answer:

a. to produce large amount of blending

Answer 2

Answer:

(a) Obliquely; making a large angle of incidence.

(b) Perpendicular to the glass surface

Explanation:

1) If light enters any substance with a higher refractive index (such as from air into glass) it slows down. The light bends towards the normal line. ... As the light enters the water, it is refracted. Since the light is passing from air (less dense) into water (more dense), it is bent towards the normal.