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White light is used to illuminate the two slits in Young's double slit experiment. The separation between the slits is b and the screen is at a distance `Dgt gt b` from slits. At a point on the screen directly in front of one of the slits, the missing wavelengths are

A

`(b^(2))/D,(b^(2))/(3D)`

B

`b/(D^(2)),b/(3D^(2))`

C

`(b^(2))/(2D),(b^(2))/(4D)`

D

`(D^(2))/b,(D^(2))/(3b)`

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