1.

White light used to illuminate two slits in a YDSE. The separation between the slits is d and the screen is at a distance D(D gt gt d) from the slits . At a point on the screen directly in front of one of the slits , which of the following wavelengths are missing .

Answer»

`(d^(2))/D`
`(2D^(2))/D`
`(d^(2))/(3D)`
`(2d^(2))/(3D)`

ANSWER :A::C


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