Calculate Energy of Neutron Wavelength 0.1nm

Thread starter bon
Start date Nov 29, 2010
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Energy Neutron

AI Thread Summary

To calculate the energy of a neutron with a wavelength of 0.1 nm, the equation E = hv/L is proposed, where L represents the wavelength. There is confusion about how to express velocity (v) in terms of energy (E), as total energy includes both kinetic and rest energy. The alternative approach suggests using the de Broglie wavelength formula, λ = h/p, to find kinetic energy (KE) and then adding the rest energy. Clarification is needed on whether to consider total energy or just kinetic energy for this calculation. The discussion emphasizes the importance of understanding the relationship between wavelength, momentum, and energy in particle physics.

Nov 29, 2010

bon

Homework Statement

Calculate the energy of a neutron wavelength 0.1nm

Homework Equations

The Attempt at a Solution

let L = lambda

So i just use E = hv/L

L = hv/E

But how do i write v in terms of E? isn't E the total energy rather than just kinetic...

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Nov 29, 2010

bon

Or can i use lambda = h/p, work out the KE, then add on the rest energy?

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