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what is the de-Broglie wavelength of the electron accelerated through a potential

what is the de-Broglie wavelength of the electron accelerated through a potential difference of 100V?

Options

(a) 12.27Å
(b) 1.227Å
(c) 0.1227Å
(d) 0.001227Å

Correct Answer:

1.227Å

Explanation:

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