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If a light of wavelength lambda falling ...

If a light of wavelength `lambda` falling on a single slit of width a diffracts at an angle`theta`, the condition of first minima will be

A

`lambda sin theta = a`

B

`a cos theta = lambda`

C

`a sin theta = lambda`

D

`lambda cos theta = a`

Text Solution

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In this case, the condition of first minima will be `a sin theta = lambda`
The option © is correct.
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CHHAYA PUBLICATION-DIFFRACTION AND POLARISATION OF LIGHT-EXAMINATION ARCHIVE WITH SOLUTIONS
  1. If a light of wavelength lambda falling on a single slit of width a di...

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