| Quantum
Theory (cont.) |
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| n | When light acts
like a particle, |
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| it has momentum
just like a |
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| particle |
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| n | Compton
Effect—when an e-m |
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| photon hits an
electron, the |
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| photon transfers
some of its |
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| energy and
momentum to the |
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| electron |
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| n | Particles can
also act like |
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| waves by having
a wavelength |
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| (usually too
small to detect) |
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