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DIFFRACTION DEMONSTRATIONS A LASER IS USED AS A LIGHT SOURCE. USUALLY THE BRIGHTER(ROUND) LASER IS USED. A GREEN POINTER LASER IS ALSO AVAILABLE. 6C20.10 DIFFRACTION PATTERN AROUND OPAQUE OBJECT 6C20.30 DIFFRACTION PATTERN OF ROUND OPENING 6C20.31 DIFFRACTION PATTERN OF ROUND OPENING OF LASER
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