1.

The distance between the two slits in a Young.s double slit experiment is d and the distance of the screen from the plane of the slits is b, P is a point on the screen directly infront of one of the slits . The path difference between the waves arriving at P from the two slits is

Answer»

`(d^(2))/B`
`(d^(2))/(2B)`
`(2d^(2))/b`
`(d^(2))/(4B)`

Answer :B


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