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Chap. 27 Conceptual Modules Giancoli

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ConcepTest <strong>27</strong>.3d<br />

An electron and a proton<br />

have the same momentum.<br />

Which has the longer<br />

wavelength?<br />

Wave-Particle Duality IV<br />

1) electron<br />

2) proton<br />

3) both the same<br />

4) neither has a wavelength<br />

Remember that<br />

λ<br />

= h<br />

mv<br />

and p = mv, so if the<br />

particles have the same momentum, they will also<br />

have the same wavelength.

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