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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#