Physics, 27.05.2021 23:20 giiffnlojd
The electrons in a cathode-ray tube are accelerated through a 250 V potential difference and then shot through a 33-nm-diameter circular aperture. What is the diameter of the bright spot on an electron detector 1.5 m behind the aperture
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The electrons in a cathode-ray tube are accelerated through a 250 V potential difference and then sh...
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