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Uncertainty in position of mass 25 g in...

Uncertainty in position of mass ` 25 g` in space is ` 10^(-5) m`. The uncertainty in it's velocity (in `ms^(-1)` is :

A

`2.1xx10^(-34)`

B

`0.5xx10^(-34)`

C

`2.1xx10^(-28)`

D

`0.5xx10^(-23)`

Text Solution

Verified by Experts

The correct Answer is:
C
According to Heisenberg uncertainty principle,
`Deltax. mDeltav=(h)/(4pi)," "Deltav=(6.6xx10^(-34)xx1000)/(4xx3.14xx25xx10^(-5))" "therefore" "Deltav=2.1xx10^(-28)ms^(-1)`
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