Question
The energy of first (lowest) Balmer line of H atom is x ~J . The energy (in J) of second Balmer line of H atom is :
JEE Main
Chemistry
Structure of Atom
2026
JEE Main 2026 (22 January Shift 2)
JEE Main Chemistry Question (2026) — Solution
Options
- A. 1.35 x
- B. x^ 2
- C. 2 x
- D. x 1.35
Answer
A. 1.35 x
Step-by-step solution
First Balmer line: transition n=3 to n=2, energy E_1 = 13.6( 1 4 - 1 9 ) = 13.6 5 36 = x J. Second Balmer line: transition n=4 to n=2, energy E_2 = 13.6( 1 4 - 1 16 ) = 13.6 3 16 J. Ratio: E_2 E_1 = 3 16 5 36 = 3 16 36 5 = 27 20 = 1.35. Thus second Balmer line energy is 1.35x J.
Related: Chemistry — Structure of Atom · All PYQ Banks