Question

Show that no angular deviation occurs when light passes through a glass slab kept in air.

Answer 1

Answer:

this is the answer what you want.

Explanation:

Dispersion occurs when light is passed through a prism. The dispersion is caused due to the the difference in the angle of deviation for different colours. In the case of a glass slab, the opposite sides are parallel and therefore different colors emerge parallel to each other and are seen simultaneously.

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