A certain transition in $H$ spectrum from an excited state to ground state in one or more steps gives rise to a total of 10 lines. How many of these belong to the visible region of the spectrum?

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Solution

As we know,
No of lines $= n (n - 1) / 2 = 10$
n = 5.
So, no of lines in visible region (Balmer series) = 3.

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A certain transition in H spectrum from an excited state to ground state in one or more steps gives rise to a total of 10 lines. How many of these belong to the visible region of the spectrum?

As we know,No of lines =n(n−1)/2=10n = 5.So, no of lines in visible region (Balmer series) = 3.

A certain transition in $H$ spectrum from an excited state to ground state in one or more steps gives rise to a total of 10 lines. How many of these belong to the visible region of the spectrum?

As we know,
No of lines $= n (n - 1) / 2 = 10$
n = 5.
So, no of lines in visible region (Balmer series) = 3.