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Hydrogen atoms are excited from ground s...

Hydrogen atoms are excited from ground state of the principle 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
Number of spectial lines `N_(E) = (n(n - 1))/(2) = (4(4 - 1))/(2) = 6`
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