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|The wave number of the first line in Balmer series of hydrogen is

SSC CGL

MediumQ. No. the-wave-number-of-the-first-line-in-balmer-series-of-hydrogen-is

The wave number of the first line in Balmer series of hydrogen is

Last Updated: 26 Jun 2026

A15233 cm^-1

B20565 cm^-1

C27419 cm^-1

D5331 cm^-1

Correct Answer: 15233 cm^-1

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Your Answer: A

Explanation

Balmer series n1=2 to n=3 transition. Using Rydberg formula: 1/lambda = RH(1/4 - 1/9) = RH x 5/36. Wave number = 15233 cm^-1.

Important Notes

Balmer series visible range; Lyman UV; Paschen IR

SSC CGL Chemistry

SSC CGL

Answer

15233 cm^-1

Exam Info

Asked in: SSC, Railway, Banking and other competitive exams.
Also asked in: RRB NTPC, CHSL, State PCS and online mock tests.
Topic: SSC CGL Chemistry

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