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Calculate the velocity of an electron ha...

Calculate the velocity of an electron having de Broglie wavelength of 200 Å.
`[m=9.11xx10^(-31)kg,h=6.626xx10^(-34)J*s]`.

Text Solution

Verified by Experts

According to de Broglie equation, `lamda=(h)/(mv)`
`therefore v=(h)/(m lamda)=(6.626xx10^(-34)kg*m^(2)*s^(-1))/((9.11xx10^(-31)kg)xx(200xx10^(-10)m))`
`=3.64xx10^(4)m*s^(-1)" "[because1"Å"=10^(-10)m]`
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