post assessment #29


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Maggie Doan 1I
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Joined: Fri Sep 28, 2018 12:24 am

post assessment #29

Postby Maggie Doan 1I » Thu Oct 18, 2018 7:08 pm

If a proton and an electron have the same de Broglie wavelength do they have the same speed?

Jerome Mercado 2J
Posts: 60
Joined: Tue Nov 28, 2017 3:02 am

Re: post assessment #29

Postby Jerome Mercado 2J » Thu Oct 18, 2018 7:16 pm

Instead of speed, the particles would have the same momentum. Since the particles' mass are not equivalent, the electron will still move faster than the proton due to its extremely small weight.

Catherine Kim 3K
Posts: 31
Joined: Fri Sep 28, 2018 12:26 am

Re: post assessment #29

Postby Catherine Kim 3K » Thu Oct 18, 2018 9:14 pm

No they will not have the same speed. They will have the same momentum. The formula of the de Broglie wavelength is λ = h/p. P = mass x velocity. An electron is lighter than a proton, so it was have a higher velocity/speed.


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