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Question
How will the de-Broglie wavelength associated with an electron be affected when the velocity of the electron decreases? Justify your answer.
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Solution
According to the de-Broglie wavelength formula, the wavelength is inversely proportional to electron momentum. The product of mass and velocity is momentum. As a result, as the electron's velocity declines, so does its momentum. As a result, the de-Broglie wavelength of the electron will grow.
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