Question

OR
Differentiate between a glass slab and a glass prism. What happens when a
marrow beam of a monochromatic light, and (i) white light passes through
(2) glass slab and (b) glass prism?​

Answer 1

Answer:

Glass slabe : It is rectangular in shape and made up of glass. In glass slab, the direction of the incident ray and the emergent ray of light are parallel to each other. ...

Whereas,

In glass prism, the direction of the incident ray and the emergent ray of light is not parallel to each other.

When a narrow beam of a monochromatic light white light passes through (2)glass slab it forms an infinite images but the most prominent image is the second image

When a narrow beam of a monochromatic light white light passes through (b) glass prism it splits into seven colours they are Red, Orange,Yellow,Green, Blue, Indigo, Violet. And this splitting if white light into seven colours is called Dispersion.

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