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A neutron is confined to a nucleus of si...

A neutron is confined to a nucleus of size `2xx10^(-14)m`. The minimum momentum of the electron may be

A

`6.6xx10^(-20)kg m//s`

B

`3.3xx10^(-20) kgm//s`

C

`3.3xx10^(-48)kg m//s`

D

`6.6xx10^(-48) kg m//s`

Text Solution

Verified by Experts

The correct Answer is:
B
Since `Deltax Deltap=h`
`:.2xx10^(-14)xxDeltap=6.6xx10^(-34)`
`impliesDeltap=(6.6xx10^(-34))/(2xx10^(-14))`
`impliesDeltap=3.3xx10^(-20)kgm//s`
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