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Jack Ratan Chatterjee
Asked: 2022-10-29T01:26:49+05:30 In:

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`

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`
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1 Answer

  1. Correct Answer – B
    `y = (n lambda D)/(d)`

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