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Hydrogen atoms are excited from ground s...

Hydrogen atoms are excited from ground state to the state of priciple 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
Here n = 4
`therefore` the number of spectral lines emitted `= (n(n-1))/(2) = (4 xx 3)/(2) = 6`
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