Question

calculate maximum no. of spectrum line that can be obtained when an electron undergoes transition -
mom n = 6 energy level to the ground state
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Answer 1

answer 15

Explanation:

When the excited electron of an H atom in n = 6 drops to the ground state, the following transitions are possible:

The number of spectral lines:

2

n(n−1)

where n=6

Hence the total number of spectral line will be:

2

6×5

=15