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What will be the angle of diffracting fo...

What will be the angle of diffracting for the first minimum due to Fraunhofer diffraction with sources of light of wavelength `550nm` and slit of width `0.55mm`?

A

(a) `0.001rad`

B

(b) `0.01rad`

C

(c) `1rad`

D

(d) `0.1rad`

Text Solution

Verified by Experts

The correct Answer is:
A
Using `dsin theta=nlambda`, for `n=1`
`sin theta=lambda/d=(550xx10^-9)/(0.55xx10^-3)=10^-3=0.001rad`
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