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In a hydrogen atom, the electron is in n...

In a hydrogen atom, the electron is in `n^(th)` excited state. It may come down to second excited state by emitting ten different wavelengths. What is the value of n ?

A

`6`

B

`7`

C

`8`

D

`5`

Text Solution

Verified by Experts

The correct Answer is:
A
`10= .^(n)C_(2) implies n=5`, then 5 orbits are involved upon coming to second excited state
so `n^(th)` excited state is `6^(th) [2^(nd), 3^(rd), 4^(th), 5^(th), 6^(th)]`
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