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teclo
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A Fe (57) atom is in an excited state 14.4 keV above the ground state. The nucleus decays to the ground state with the emission of a gamm ray. What's the recoil speed of the nucleus?
I'm not sure how to set this up. I thought a photon would have no mass, therefor no momentum. If so I couldn't do this with conservation of momenumtum or energy. I must be missing something, anyone have any ideas?
I'm not sure how to set this up. I thought a photon would have no mass, therefor no momentum. If so I couldn't do this with conservation of momenumtum or energy. I must be missing something, anyone have any ideas?