A small disc is placed in the path of the light from distance source. Will the center of the shadow be bright or dark?

A small disc is placed in the path of the light from distance source.

1.	A small disc is placed in the path of the light from distance source. Will the center of the shadow be bright or dark?
Answer» SOLUTION :(i) Wave diffracted from the edge of circular obstacle interfere CONSTRUCTIVE at the center of the shadow resulting in the formation of bright spot. (II) CENTRE of the shadow is bright due to diffraction.

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A small disc is placed in the path of the light from distance source. Will the center of the shadow be bright or dark?

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