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An interference is observed due to two c...

An interference is observed due to two coherent sources `S_1` placed at origin and `S_2` placed at `(0, 3lambda, 0)`. Here, lambda is the wavelength of the sources. A detector D is moved along the positive x-axis. Find x-coordinates on the x-axis (excluding `x = 0 and x= oo`) where maximum intensity is observed.

A

4

B

5

C

`infty`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
A
At `x=0, Deltax=5lambda`
which corresponding to a maximum
At `x=infty Deltax=0` this alsocorresponds to a maximum
`:.` other possible maxima between x=0 and `Deltax=lambda,2lambda,3lambda,4lambda`
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