Question

A light beam travels through a diamond (n=2.42) to pure water (n=1.33). The refracted ray will:

a) bend toward the normal
b) bend away from the normal
c) remain unchanged
d) bend toward the normal then away

Answer 1

b) bend away from the normal

Step-by-step explanation:

According to snell's law , if i be the angle of incidence and r be the angle of refraction

sin i / sin r = 1.33 / 2.42

sin i / sin r = .55

Hence sin r > sin i

r > i

In other words angle of refraction will be more than angle of incidence . So, the ray will bend away from the normal .