Question: Electrons pass through a 200 -nm-diameter circular aperture, (mathbb{N T}) forming a diffraction pattern on a detector (1.2 mathrm{~m}) behind the aperture. What is the

Electrons pass through a 200 -nm-diameter circular aperture,

$\mathbb{N T}$ forming a diffraction pattern on a detector $1.2 \mathrm{~m}$ behind the aperture. What is the kinetic energy of the electrons if the width of the central maximum is $0.37 \mathrm{~mm}$ ?

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