calculate de-broglie wavelength of an electron
Calculate de-Broglie wavelength of an electron travelling at 1% of the speed of light:
(1) 2.73 x 10- 24
(2) 2.42 x 10-10
(3) 242.2x 10- 10
(4) None of these
ans: 2.42 x 10-10
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