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n Young's double slit experiment with so...

n Young's double slit experiment with sodium vapour lamp of wavelength 589 nm and the slits 0.589 mm apart, the half angular width of the central maximum is

A

`sin^(-1)0 01`

B

`sin^(-1)0.0001`

C

`sin^(-1) 0.001`

D

`sin^(-1)0.1`

Text Solution

Verified by Experts

The correct Answer is:
C
Angular width= `(lambda)/(d)`
`sintheta= (lambda)/(d)`
`implies sintheta= (589 xx 10^(-9))/( 589 xx 10^(-6))= 10^(-3)`
`implies theta= sin^(-1)(0.001)`
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