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Postby AronCainBayot2K » Sun Oct 20, 2019 4:59 pm

Protons and neutrons have nearly the same mass. How different are their wavelengths? Calculate the wavelength of each particle when traveling at 2.75 * 10^5 m*s^-1 in a particle accelerator and report the difference as a percentage of the wavelength of the neutron.

I am confused on how to calculate the wavelength of each particle. How do I determine how their wavelengths are different?

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Re: 1B19

Postby preyasikumar_2L » Sun Oct 20, 2019 5:10 pm

Using the De Broglie equation λ = h/mv and the masses of a proton (1.6726*10^-27 kg) and a neutron (1.6750*10^-27 kg) that you find by looking them up (I think, unless it's given or you've memorized them)

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Re: 1B19

Postby MTanikella_1K » Sun Oct 20, 2019 6:04 pm

As mentioned in the previous post, the de broglie equation should be used for this problem. The calculations will show that there is no difference in the first three significant figures of the wavelength.

Kendall 3H
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Re: 1B19

Postby Kendall 3H » Sun Oct 20, 2019 8:21 pm

All you have to do for this problem is use the equation "wavelength= h/ (mass x velocity)"
You are trying to find the wavelength and you already have h and velocity and all you have to do is look up the mass of a proton and a neutron. The masses are very similar. Once you calculate the wavelength of a proton and neutron you see that the wavelengths are the same.

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