A nonrelativistic electron is accelerated from rest through a potential difference. After acceleration the electron has a de Broglie wavelength of 880 nm
What is the potential difference though which this electron was accelerated? (h = 6.626 × 10-34 J ? s, e = -1.60 × 10-19 C,
mel = 9.11 × 10-31 kg)
A) 1.9 µV
B) 1.7 µV
C) 2.2 µV
D) 2.5 µV
Answer: A
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