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In Young's double-slit experiment, the s...

In Young's double-slit experiment, the slits are `2mm` apart and are illuminated by photons of two wavelengths `lambda_1=12000Å` and `lambda_2=10000Å`. At what minimum distance from the common central bright fringe on the screen `2m` from the slit will a bright fringe from one interference pattern coincide with a bright fringe from the other?

A

`8 mm`

B

`6 mm`

C

`4mm`

D

`3mm`

Text Solution

Verified by Experts

The correct Answer is:
B
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