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Answer 1 · 2018-02-04T15:03:40

$v~~1.12 xx 10^6m//s$

The formula for the wavelength of an electron is given by:

$lambda=h/p$ , where $h$ is Planck's constant and $p$ is the momentum of the electron.

The equation is also written as:

$lambda=h/(mv)$

Here,

$lambda=6.5*10^-10 m$

$m=9.11*10^-3 1kg$

$h=6.626*10^-34 J.s$

We can rearrange the formula to give:

$v=h/(lambda m)$

Input:

$v=(6.626*10^-34 J.s)/(6.5*10^-10 m*9.11*10^-31 kg)$

$v~~1.12 xx 10^6 m//s$