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In dispersion of light rays which is odd out of followings: 1. It involves sepa...


Question

In dispersion of light rays which is odd out of followings:
1. It involves separation of colours
2. Separation is due to differences in speeds
3. All colours travel with the same speed in vacuum
4. No speed is involved

Options

A) 1 only

B) 2 only

C) 3 only

D) 1, 2, 3 and 4 only

E) 1, 2 and 3


The correct answer is E.


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