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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 "cm s"^(-1)`

B

`1xx10^11 "cm s"^(-1)`

C

`1.1xx10^9 "cm s"^(-1)`

D

`1xx10^6 "cm s"^(-1)`

Text Solution

Verified by Experts

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