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The number of possible spectral lines em...

The number of possible spectral lines emitted when electron in n=4 Bohr orbit reaches to n=1 Bohr orbit is.

A

1

B

2

C

4

D

6

Text Solution

Verified by Experts

The correct Answer is:
D
No. of lines produced when an electron jumps from `n^(th)` level to ground level `=(n(n-1))/(2)`. The possible spectral emissions correspond to the transfer n = 4 to n = 3, n = 4 to n = 2, n = 4 to n = 1, n = 3 to n = 2, n = 3 to n = 1 and n = 2 to n = 1. There are 6 emissions.
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