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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:
3
`nlambda-2d sin theta`
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