The kinetic energy of an electron is 5 eV. Calculate the de-Broglie wa – McqOptions

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1.	The kinetic energy of an electron is 5 eV. Calculate the de-Broglie wavelength associated with it (h = 6.6 ´ 10?34 Js, me = 9.1 ´ 10?31 kg) [Pb. PMT 2004]
A.	5.47 Å
B.	10.9 Å
C.	2.7 Å
D.	None of these
Answer» B. 10.9 Å

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