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At what angle for the first - order diff...

At what angle for the first - order diffraction, spacing between two planes respectively is `lambda and (lambda)/(2)`?

A

`0^@, 90^@`

B

`90^@, 0^@`

C

`30^@, 90^@`

D

`90^@, 30^@`

Text Solution

Verified by Experts

The correct Answer is:
C
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