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What will be de Broglie's wavelength of ...

What will be de Broglie's wavelength of an electron moving with a velocity of `1.2 xx 10^(5) ms^(-1)` ?

A

`6.044 xx 10^(-9) `m

B

`3.133 xx 10^(-37)` m

C

`6.626 xx 10^(-9)` m

D

`6.018 xx 10^(-7)`m

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A
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