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In a Young's double slit experiment (sli...

In a Young's double slit experiment (slit distance d) monochromatic light of wavelength `lambda` is used and the figure pattern observed at a distance L from the slits. The angular position of the bright fringes are

A

`sin^(-1)((Nlambda)/(d))`

B

`sin^(-1)(((N+ (1)/(2))lambda)/(d))`

C

`sin^(-1)((Nlambda)/(D))`

D

`sin^(-1)(((N+ (1)/(2))lambda)/(D))`

Text Solution

Verified by Experts

The correct Answer is:
A

For bright- `dsintheta= nlambda`
`implies sintheta= (nlambda)/(d)`
`implies theta= sin^(-1)((Nlambda)/(d))` [as n= N]
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