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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

`sqrt(h//m)`

B

`sqrt(m//h)`

C

`sqrt(h//p)`

D

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

Text Solution

Verified by Experts

The correct Answer is:
A
`lambda = v`
`lambda = (h)/(mv)`
`v^(2) = (h)/(m)`
`v = sqrt((h)/(m))`
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