In a sample of H-atoms electrons are de-excited from 4th excited state to ground state. Which is / are correct statement?

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No line observed in P-fund series.

Total ten lines observed in spectrum.

4 lines in UV-region and 3 lines in visible region observed.

One line observed in Brackett series.

answer is A.

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Detailed Solution

5−1 5−2 5−3 5−4⏟ Brackett4−1 4−2 4−3⏟Paschen3−1 3−2⏟Balmer2−1⏟Lyman

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