1.

In Young.s double couble slit experiment the intensity of light at a point on the screen where path difference is lambda is I. If intensity at another point is I/4 ,then possible path differences at this point are

Answer»

`lambda/2,lambda/3`
`lambda/3,(2lambda)/3`
`lambda/3,lambda/4`
`(2lambda)/3,lambda/3`

ANSWER :B


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