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The wavelength of an electron moving with a velocity $5 \times 10^{5} m s e c^{- 1} i s (h = 6.63 \times 10^{- 34} k g m^{2} s e c^{- 1})$

A. $11.6 \times 10^{- 5} m$

B. $11.6 \times 10^{- 9} m^{- 1}$

C. $14.6 \times 10^{- 5} m$

D. $1.46 \times 10^{- 9} m$

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Correct Answer : D.

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