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WHEN TWO LIGHT WAVES MEET, THEY DESTROY AT SOME POINTS AND REINFORCE AT OTHER POINTS. HENCE SOME COLOURS APPEAR AND SOME COLOURS VANISH IN DVD, SOAP BUBBLES.
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WHEN TWO LIGHT WAVES MEET, THEY DESTROY AT SOME POINTS AND REINFORCE AT OTHER POINTS. HENCE SOME COLOURS APPEAR AND SOME COLOURS VANISH IN DVD, SOAP BUBBLES.