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Red light is generally used to observe d...

Red light is generally used to observe diffraction pattern from single slit. If blue light is used instead of red light, then diffraction pattern

A

Will become more bright

B

Will become contract

C

Will expand

D

Will not be seen

Text Solution

Verified by Experts

The correct Answer is:
B
Wavelength of green light is less than that of red light. Therefore, fringe pattern will contracted because `beta` (fringe width) `prop lambda`.
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