A beam of electrons is incident on a single slit whose width could be varied with...

A beam of electrons is incident on a single slit whose width could be varied with as high precision as we like. Assuming that we would like to resolve 1% difference in momentum, please estimate the slit width that would be necessary to resolve the interference pattern of the electrons if their kinetic energy is (a) 0.02 MeV, (b) 0.8 MeV and 120 MeV?

Hint: one does not need to do a detailed interference pattern analysis here, just use your QM common sense.

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genius_generous answered 1 year ago

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