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In Young's double slit experiment, white...

In Young's double slit experiment, white light is used. The separation between the slits is b. The screen is at a distance d `(dgt gt b)` from the slits, Some wavelengths are missing exactly in front of one slit. These wavelengths are

A

`lamda=(b^(2))/d`

B

`lamda=(2b^(2))/d`

C

`lamda=(b^(2))/(3d)`

D

`lamda=(2b^(2))/(3d)`

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