Assertion `:` The air bubble shines in water.
Reason `:` Air bubble in water shines due to refraction of light.

Options

A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but R is NOT the correct explanation of A
C. A is true but R is false
D. A is false and R is True

Answer

A

Explanation

Air bubbles shine in water due to total internal reflection, Total internal reflection is a special case of refraction when light passes from denser medium (water) to rarer medium (air inside the bubble) and angle of incidence dis more than the critical angle. So, the reason is also true. The reason also explains the assertion properly.