Question

Differentiate between a glass slab and a glass prism.

Answer 1

The differences between a glass slab and a glass prism:

Glass slab	Glass prism
1. Glass slab is a glass plate that is transparent and comprises rectangular-shaped reflecting surfaces	1. Glass prism comprises transparent glass plates, of which there are two rectangular sides inclined to each other, two triangular faces and a rectangular base.
2. In a glass slab, the emergent ray is parallel to the incident ray.	2. In a glass prism, the emergent ray is not parallel to the incident ray
3. When a narrow beam of white light passes through a glass slab, it emerges out as white light. i.e, no splitting takes place	3. When a narrow beam of white light passes through a glass prim, splitting of light into its seven constituent colors takes place,