What is the de Broglie wavelength of an election, whose kinetic energy – McqOptions

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1.	What is the de Broglie wavelength of an election, whose kinetic energy is 120 eV ?(Given: m = 9.11 x 10-31 kg, h = 6.63 x 10-34 Js, 1eV = 1.6 x 10-19 J)
A.	100 nm
B.	0.112 nm
C.	0.8 nm
D.	0.5 nm
Answer» C. 0.8 nm

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