In a Double Slit Experiment....| JEE Main 2022 | Wave Optics

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JEE MAIN 2022

29-06-22 S2

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In a double slit experiment with monochromatic light, fringes are obtained on a screen placed at some distance from the plane of slits. If the screen is moved by $5 \times 10^{-2}$ m towards the slits, the change in fringe width is $3 \times 10^{-3}$ cm. If the distance between the slits is 1 mm, then the wavelength of the light will be ______nm.

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