Q126 / 180 · COMEDK 2019 · Physics

When light is incident on a diffraction grating, the zero order principal maximum will be

A
one of the component colours
B
absent
C
spectrum of the colours
Correct answer
D
white

Solution

Zero order principal maximum contains all incoming wavelets in diffraction pattern, Hence, zero order principal maximum will be white.

Hence, the correct answer is option: 'D'.

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