Question

21. In Young's double slit experiment distance between the slits is 1mm. The fringe width is found to
be 0.6mm. When the screen is moved through a distance of 0.25m away from the plane of
the slit
, the fringe width becomes 0.75mm. Find the wavelength of light used.
(5M]
​

Answer 1

Answer:

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Explanation:

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