Question a beam of electrons of 25ev kinetic energy is, Ask an Expert

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Question: A beam of electrons of 25eV kinetic energy is directed at a single slit of 2.0 x 10^-6 m width, and then detected at a screen 4m beyond the slit.

Part A: How far from a point directly in the line of the beam is the first location where no electrons are ever detected?

Please show complete calculation thank you!

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Category:- Physics
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