PPT Slide

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• A stream of particles aimed at a  small opening behaves quite differently:

• Some particles hit the edge and  stop; those going through continue  linearly in a narrower stream.

• If a wave passes through a slit about  as wide as its wavelength, it forms a  semi-circular wave on the other side  of the opening.

Wave Diffraction

Concept 7-2. How particles and waves differ in terms of the phenomena of refraction, diffraction, and interference

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