In the figure, if a parallel beam of white light is incident on the plane of the slits S 1 and S 2 then the distance of the nearest white spot on the screen from O is [Assume D d , d λ ]

Question

In the figure, if a parallel beam of white light is incident on the plane of the slits S 1 and S 2 then the distance of the nearest white spot on the screen from O is [Assume D > > d , d > > λ ], 0, 3d 8, d 2, d 8

MARKS App · Accepted Answer

White spot on screen would be central maximum where Δ x = 0 y = d 2 - d 8 = 3d 8

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