Q. 584.2( 11 Votes )

Similar to electr

Answer :

Given:

Mass of electron, m = 1.675× 10-27 kg


Wavelength, λ = 800 pm


According to the de Broglie’s Equation:


λ = h/mv


Where,


λ = wavelength of moving particle


m = mass of electron


v= velocity of particle


h= Planck’s constant [6.62× 10-34]


v = {[6.62× 10-34] / [1.675× 10-27] × [800 × 10-12]}


= {[6.62× 10-34] / [1.34× 10-36]


= 494.4776 m / s


Therefore, the velocity is 494.48 m / s.


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