Consider the following spectral lines for atomic hydrogen: A. First line of Paschen series B. Second line of Balmer series C. Third line of Paschen series D. Fourth line of Bracket sereis The correct

Question

Consider the following spectral lines for atomic hydrogen: A. First line of Paschen series B. Second line of Balmer series C. Third line of Paschen series D. Fourth line of Bracket sereis The correct arrangement of the above lines in ascending order of energy is:

(A) D < C < A < B
(B) A < B < C < D
(C) C < D < B < A
(D) D < A < C < B

Prashant Kotian · Accepted Answer

Correct answer: D. E = 13.6 Z 2 1 1 n n        Series n1 n2 (A) Paschen (1 st line) 3 4 (B) Balmer (2 nd line) 2 4 (C) Paschen (3 rd line) 3 6 (D) Bracket (4 th line) 4 8 So correct ascending order of energy of above lines is : D < A < C < B

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