how fast is an electron moving if it has...

how fast is an electron moving if it has a wavelength equal to the distance traveled in one second ?

A

`3.5 xx 10^(-8) m`

B

`sqrt((m)/(h))`

C

`sqrt((h)/(m))`

D

`sqrt((h)/(2K.E))`

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The correct Answer is:

C

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