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If two slits in Young’s experiment are 0.4 mm apart and fringe width on a screen

If two slits in Young’s experiment are 0.4 mm apart and fringe width on a screen 200 cm away is 2 mm, the wavelength of light illuminating the slits is

Options

(a) 500 nm
(b) 600 nm
(c) 400 nm
(d) 300 nm

Correct Answer:

400 nm

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

JK2013
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