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An electron at a few million m/s has a de Broglie wavelength comparable to
AX-ray wavelengths
BMicrowave wavelengths
CRadio wavelengths
DVisible wavelengths
Answer & Solution
Correct answer: A. X-ray wavelengths
An electron at 5.4 x 10^6 m/s has a wavelength of about 0.135 nm, in the X-ray range.
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