Question: Electrons, all with the same speed, pass through a tiny 15 nm-wide slit and create a diffraction pattern on a detector 50 mm behind the

Electrons, all with the same speed, pass through a tiny 15 nm-wide slit and create a diffraction pattern on a detector 50 mm behind the slit. What is the electron’s kinetic energy, in eV, if the central maximum has a width of 3.3 mm?

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