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With two slits spaced 0.2 mm apart and a...

With two slits spaced 0.2 mm apart and a screen at a distance of 1 m, the third bright fringe is found to be at 7.5 mm from the central fringe. The wavelength of light used is

A

`400 nm`

B

`500 nm`

C

`550 nm`

D

`600 nm`

Text Solution

Verified by Experts

The correct Answer is:
B
`y = (n lambda D)/(d)`
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