Dispersion of light by glass prism takes place due to the fact that_

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The lights of different colours have different intensities

The lights of different colours have different speeds in a medium

Different colours have different frequencies

The lights of different colours have different energies

answer is B.

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Detailed Solution

Dispersion of light by glass prism takes place due to the different speeds of different colours in a medium.
When a ray of light passes through a glass prism, then the phenomenon of dispersion takes place, and the ray of light gets divided into sevens colours. The process of dispersion takes place due to the different speeds of different colours of light, and due to different speeds, the bending of light takes place at different angles when light enters or exists from one medium to another.

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