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Unertainty in the position of an electro...

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`

A

`5.76xx10^(-2)m`

B

`1.92x10^(-2)m`

C

`3.84xx10^(-2)m`

D

`19.2xx10^(-2)m`

Text Solution

Verified by Experts

The correct Answer is:
B
`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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