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Doubt & Answer Explanation

Doubt

In a single slit diffraction experiment,the width of the slit is made double the original width. how does this affect the size and intensity of the central diffraction band?

Answer Explanation

The size of the central diffraction band gets reduced by half as size of the band is proportional to ?/d where d is the width of the slit.

The intensity increases 4 times because Intensity of the central diffraction band is proportional to d² where d is the width of the slit.

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