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Monochromatic light with wavelength 460 nm passes through a circular aperture, and a diffraction pattern is observed on...

Monochromatic light with wavelength 460 nm passes through a circular aperture, and a diffraction pattern is observed on a screen that is 1.40 m from the aperture. The distance on the screen between the first and second dark rings is 1.65 mm.

What is the diameter?

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Answer #1

wave length of monochrom atic light 1-460x10-m Distance of screen=D 1.40m fringe width i.e distance between the first and sec

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