1.

The area of the electron orbit for the ground state of hydrogen atom is A. Then what will be area of the electron orbit corresponding to the first excited state?

Answer»

`4A`
8A
16A
32A

Solution :`r_(n) ALPHA n^(2), " here "A_(n) alpha n^(4)`
`A_(2)/A_(1)=2^(4)/1^(4)=16`
`A_(2)=16A`


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