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Light of wavelength 5000xx10^(-10)m is i...

Light of wavelength `5000xx10^(-10)m` is incident normally on a slit. The first minimum of the diffraction pattern is observed to lie at a distance of 5 mm from the central maximum on a screen placed at a distance of 3m from the slit. Then the width of the slits is

A

3 cm

B

0 . 3 cm

C

0 . 0 3 cm

D

0 . 01 cm

Text Solution

Verified by Experts

The correct Answer is:
C
`a sin theta = n lambda , "a" (Y)/(D) = n lambda a= (n lambda D)/(Y)`
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