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Calculate the uncertainty ini velocity (...

Calculate the uncertainty ini velocity `(m*s^(-1))` of a moving object of mass 25g, if the uncertainty in its position be `10^(-5)m`. `[h=6.6xx10^(-34)J*s]`

Text Solution

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We know, `Deltax*Deltap=(h)/(4pi) or, Deltax*mDeltav=(h)/(4pi)`
`therefore Deltav=(6.6xx10^(-34))/(4xx3.14xx10^(-5)xx0.025)=2.099xx10^(-28)m*s^(-1)`
`[because Deltax=10^(-5)m,m=25g=0.025kg]`.
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