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The light of wavelength 6328Å is inciden...

The light of wavelength `6328Å` is incident on a slit of width `0.2mm` perpendicularly, the angular width of central maxima will be

A

`0.36^(@)`

B

`0.18^(@)`

C

`0.72^(@)`

D

`0.09^(@)`

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The correct Answer is:
A
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