1.

Unertainty in the position of an electron (mass=9.1xx10^(-31)kg) moving with a velocity 300ms^(-1) accurate upto 0.001% will be h=6.63xx10^(-34)Js

Answer»

`5.76xx10^(-2)m`
`1.92x10^(-2)m`
`3.84xx10^(-2)m`
`19.2xx10^(-2)m`

SOLUTION :`Deltax=h/(4pimDeltav)`
`Deltav=300xx0.001/100=3xx10^(-3)MS^(-1)`
`:.Deltax=(6.63xx10^(-34))/(4xx3.14xx9.1xx10^(-31)xx3xx10^(-3))`
`=1.93xx10^(-2)m`


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