1.

In H atomthe magnitude of magneticfield produced at the centredue ot orbital motion of an e revolvingin a orbit of quantum number (n ) is proportional to

Answer»

`(1)/(n^(5))`
`(1)/(n^(3))`
`n^(3)`
n

Solution :`T_(1)=2pisqrt(I)/(M_(1)H),M_(1)=ML,I_(1)=(ml^(2))/(I2)`
`I_(2)=(m)/(3).(l^(2))/(9xx12)xx3 I_(2)=1/9`
`THEREFORE T_(2)=2pisqrt(I)/(9xxMH)=1/3T_(1)=2/3s`
`T_(2)=2/3s`


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