Light from a laser torch is made to fall one by one on
A - a prism
B - a glass slab
Which phenomenon will take place in A and B?

Correct option is D

The Correct answer is A - Refraction, B - Refraction.
Prism: When light from a laser torch falls on a prism, the light undergoes refraction. Refraction is the bending or change in the direction of light as it passes from one medium to another with a different optical density.
The prism refracts the light rays, causing them to bend or change direction based on their wavelength.
Glass slab: When light from a laser torch falls on a glass slab, the light also undergoes refraction. The glass slab, being a transparent medium with a different optical density than air, causes the light to change speed and direction as it enters and exits the slab.
The refraction of light at each surface of the glass slab results in the light rays bending or changing direction.
Therefore, the correct answer is A - Refraction, B - Refraction