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Emission and Absorption Spectra

How many spec...

Question

How many spectral lines will be observed when an electron jumps from the $5^{t h}$ excited state to the ground state in the visible line spectra of H-spectrum?

A

4

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B

5

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C

3

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D

6

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Solution

The correct option is A 4
Given: Transition in H-spectra where $n_{1}$ = 1 and $n_{2}$ = 6 which corresponds to fifth excited state.
Visible region corresponds to Balmer series.
Hence,
Number of lines in the Balmer series = $n_{2} - 2 = 6 - 2 = 4$

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