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In a hydrogen atom,an electron revolves ...

In a hydrogen atom,an electron revolves with a frequency of `6.8xx10^(9)`MHz in an orbit of diameter 1.06 Å.The equivalent magnetic moment is

A

`9.5xx10^(-22) Am^(2)`

B

`7.5xx10^(-10 Am^(2)`

C

`4.5xx10^(-24) Am^(2)`

D

`9.5xx10^(-24) Am^(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
F=`6.8xx10^(9) MHZ,r=0.53 A^(@),M=?`
M=IA
`=qfpir^(2)`ltbrge`1.6xx10^(-19)xx6.8xx10^(9)xx10^(6)xx3.14xx(0.53xx10^(-10))^(2)`
`=9.5xx10^(-24)Am^(2)`
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