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Single Slit Diffraction

The condition...

Question

The condition for observing Fraunhofer diffraction from a single slit is that, the wave front incident on the slit should be,

A

Plane

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B

Elliptical

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C

Cylindrical

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D

Spherical

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Solution

The correct option is A Plane
In Fraunhofer diffraction, the source is at a far position (infinite distance) from the slit so that the wave front will be plane.

Hence, $(C)$ is the correct answer.

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