1.

Uncertainty in position of electron is of the order of de-Broglie wavelength .By using Heisenberg's principle uncertainty in velocity will be….

Answer»

1 v
2 v
`(v)/(2PI)`
`2piv`

Solution :`DELTAX.Deltap=(h)/(2pi)`
`therfore Delta x[mDeltav]=(h)/(2pi)`
`therefore Deltax[mDeltav]=(h)/(2pi)`
`therefore Deltav=(h)/(2pimDeltax)=(h)/(2pimlambda)[because Deltax=lambda]`
`therefore Deltav=(p)/(2pim)=(mv)/(2pim)=(v)/(2pi)[because (h)/(PI)=p]`


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