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  4. Assertion: In interference and diffraction, light energy is redistributed. Reason: There is no gain or loss of energy, which is consistent with the principle of conservation of energy.

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Q. Assertion : In interference and diffraction, light energy is redistributed.
Reason : There is no gain or loss of energy, which is consistent with the principle of conservation of energy.

Wave Optics

Solution:

In interference and diffraction, light energy is redistributed. If it reduces in one region, producing a dark fringe, it increases in another region, producing a bright fringe. There is no gain or loss of energy, which is consistent with the principle of conservation of energy.