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Hydrogen atoms are excited from ground s...

Hydrogen atoms are excited from ground state of the principal quantum number 4. Then, the number of spectral lines observed will be

A

3

B

6

C

5

D

2

Text Solution

Verified by Experts

The correct Answer is:
B
Possible transition are:
`4 to 3, 4 to 2, 4 to 1`.
`3 to 2, 3 to 1` and `2 to 1`
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