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In Fraunhofer diffraction experiment, L ...

In Fraunhofer diffraction experiment, L is the distance between screen and the obstacle, b is the size of obstacle and `lambda` is wavelength of incident light. The general condition for the applicability of Fraunhofer diffraction is :

A

`(b^(2))/(L lambda) gt gt 1`

B

`(b^(2))/(L lambda)=1`

C

`(b^(2))/(L lambda)lt lt1`

D

`(b^(2))/(L lambda) ne 1`

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The correct Answer is:
C
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