Physics, asked by themasterminds038, 1 month ago

please ans this question

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Answered by Anonymous

Answer:-

Option (3) is correct.

Explaination:-

Whenever white light passes through glass prism, it splits into its 7 constituent colours. This is called dispersion of white light by prism. Also the light rays bends towards the base.

In the case of rectangular glass slab, light rays will be refracted two times. First after entering the surface of glass slab and then when it moves out of glass slab. The incident ray and emergent rays are always parallel to each other. Light rays doesn't splits into 7 colours in the case of glass slab.

Hence only option (3) is correct.

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