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In the diffraction pattern due to a sing...

In the diffraction pattern due to a single slit of width 'd' with incident light of wavelength `'lamda',` at an angle of diffraction `'theta',` the condition for first minimum is

A

`lamda sin theta=d`

B

`dcostheta=lamda`

C

`dsintheta=lamda`

D

`lamda costheta=d`

Text Solution

Verified by Experts

The correct Answer is:
C
For a telescope, `R.P.(D)/(1.22lamda)`
thus R.P. depends upon the diameter (D) of the objective.
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