Is it true that the deviation of violet rays caused by a prism is maximum because the wavelength of violet light is maximum?

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True

False

answer is B.

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Detailed Solution

The above statement is false.
The wavelength of violet colour is minimum, and this is the reason the violet colour deviates most. As the wavelength of violet colour is minimum and that of red colour is maximum, in glass, the speed of violet light is minimum, and the speed of red light is maximum. Due to different speeds for the light of different colours in the glass, the rays of different colours are refracted differently while passing through a glass prism. This phenomenon is called as the refraction of light. Wavelength is “The distance between corresponding points of two consecutive waves.”
The correct statement would be that the deviation of violet rays caused by a prism is maximum because the wavelength of violet light is minimum.

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