In a $H -$ like sample electrons make a transition from $4^{t h}$ excited state $2^{n d}$ state then:

10 different spectral lines are observed

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6 different spectral lines are observed

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number of lines belonging to the Balmer series is 3

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number of lines belonging to the Paschen series is 2

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Solution

The correct options are
B 6 different spectral lines are observed
C number of lines belonging to the Balmer series is 3
D number of lines belonging to the Paschen series is 2

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n = 1

n = 4

7^{t h}

2^{n d}

H

L i^{2 +}

n^{t h}

7^{t h}

2^{n d}

H

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