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What is the maximum number of emission l...

What is the maximum number of emission lines obtained when the excited electron of a H atom in n = 5 drops to the ground state?

A

10

B

5

C

12

D

15

Text Solution

Verified by Experts

The correct Answer is:
A
Number of spectral lines emitted when electron jumps from `n_2` to `n_1`.
`= ((n_2 - n_1)(n_2 - n_1 + 1))/(2)`
`= ((5-1)(5 - 1+1))/(2) = 10` lines .
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