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Calculate the uncertainty in the velocit...

Calculate the uncertainty in the velocity of anelectron when the uncertainty in its positionis `1.012 xx 10^(-12) m`

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According to Heisenberg's uncertainty principle
`Deltax xx Deltapge (h)/(4pi)`
`Deltap = m Deltav `
`:. mDeltav ge (h)/( 4pi Deltax)`
`Deltav ge (h)/(4pimDeltax)`
Mass of an electron `= 9.1xx 10^(-31) kg`
`pi = 3.14 ` or `(22)/( 7)`
`Deltax = 1.012 xx 10^(-12) m`
` :. Deltav = ( 6.626 xx 10^(-34) Js)/(4 xx 3.142 xx( 9.1 xx 10^(-31)kg) xx( 1.-12xx 10^(-12) m)) ` `(J = kgm^(2) s^(-1))`
` Deltav =5.72 xx 10^(7) ms^(-1)`
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