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For Fraunhofer diffraction to occur...

For Fraunhofer diffraction to occur

A

Light source should be at infinity

B

Both source and scree should be at infinity

C

Only the source should be at finite distance

D

both source and screen should be at finite distance.

Text Solution

Verified by Experts

The correct Answer is:
B
Fraunhoffer diffraction deals with the limiting cases where the light approaching the diffraction object to parallel and monochromatic, and where the image plane is at a distance large compared to the size of the diffracting object.
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