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Emission and Absorption Spectra

Electron fall...

Question

Electron falls from seventh energy level and lower energy level to give bands in paschen series. Total number of bands obtained are:

A

4

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B

3

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C

2

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D

1

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Solution

The correct option is B 4
total number of band obtained = $N_{2} - N_{1}$
$N_{2} = 7$
$N_{1} = 3$ (for paschen)
$= 7 - 3 = 4$
Option A

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