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In Young's double slit experiment the po...

In Young's double slit experiment the point source is placed slightly off the central axis as shown in figure. The plane of slits `(S_(1), S_(2))` and screen are separated by a distance of 2m. The separation between the slits is 10 mm. The position of the slit above the axis is 1mm. if the wavelength `lambda = 4000 Å` in the above arrangement

The thickness of the film in the above case is

A

`S_(1)` to P such that `[S S_(1) + S_(1)P+(mu - 1)t] ~ [S S_(2) + S_(2)P] = 0`

B

`S_(2)` to P such that `[S S_(2) + S_(2)P+(mu - 1)t] ~ [S S_(1) + S_(1)P] = 0`

C

`S_(1)` to P such that `[S S_(2) + S S_(1)] ~ [S_(1)P + (mu - 1)t + S_(2)P] = 0`

D

`S_(1)` to P such that `[S S_(1) + S S_(2)] ~ [S_(1)P + (mu - 1)t + S_(1)P] = 0`

Text Solution

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The correct Answer is:
A
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