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The uncertainty in the position of an el...

The uncertainty in the position of an electron (mass `=9.1xx10^(-28)g`) moving with a velocity of`3.0xx10^(4)cms^(-1)` accurate up to 0.011% will be

A

1.92 cm

B

7.68 cm

C

0.175 cm

D

3.85cm

Text Solution

Verified by Experts

The correct Answer is:
C
Applygin Heisenberg.s uncertainty principle
`Deltax=h/(4pixxm xx Deltav)`
`=(6.6xx10^(-27)("ergs")xx100)/(4xx3.14xx9.1xx10^(-28)xx3xx10^(4)xx0.011)`
`=0.175cm`
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