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The measurement of the electron position...

The measurement of the electron position is associated with an uncertainty in momentum, which is equal to `1 xx 10^-18 g cm s^-1`. The uncertainty in electron velocity is (mass of an electron is `9 xx 10^-28 g`)

A

`1xx10^(5)cms^(-1)`

B

`1xx10^(11)cms^(-1)`

C

`1xx10^(9)cms^(-1)`

D

`1xx10^(6)cms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
C
`Deltap=1xx10^(-18)`
`Deltav=(1xx10^(-18))/(9xx10^(-28))rArrDeltav=1/9xx10^(10)`
= `0.11xx10^(10)=1.1xx10^(9)cm//sec`.
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