Question

2. What is the angle of refraction for light entering water from air when the light

strikes the water at 20° to the normal? The index of refraction of air is 1 and 1.33
for water.
a) 22.70
b) 5.90
C) 12.9°
d) 14.90
e) 54.30

Answer 1

D) 14.90

Step-by-step explanation:

`\sin0w \: = ( \sin(20^(0) ) )/(1.33)`

`{ \sin}^( - 1) = (ans`

`0w \: = \: 14.90 ^(0)`