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Linear momentum of electron revolving in...

Linear momentum of electron revolving in `n^(th)` orbit of atom `p=(nh)/(2pir)`. If `r=10^(-15)`m is the radius of orbit then the linear momentum in ground state will have ....... `kgms^(-1)`.

A

10.54

B

1054

C

`1.054xx10^(-19)`

D

`1.054xx10^(19)`

Text Solution

Verified by Experts

The correct Answer is:
C
`p=(nh)/(2pir)`
`=((1)xx6.62xx10^(-34))/(2xx3.14xx10^(-15))`
`=1.05414xx10^(-19)`
`=1.054xx10^(-19)kgms^(-1)`
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Knowledge Check

  • The angular momentum of an electron in 4^(th) orbit is 2xx10^(-34) Js, then its angular momentum in 5^(th) orbit is …….

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