Question

The minimum energy required by a hydrogen atom in ground state to emit radiation in Balmer series is nearly :

• A. 1.5 eV
• B. 13.6 eV
• C. 1.9 eV
• D. 12.1 eV

Answer 1

Answer: (D)

12.1 eV

Answer 2

For the hydrogen atom, the transition from $n = 1$ to $n = 3$ gives the radiation in the Balmer series:

$\Delta E = 12.1 \, \text{eV}$

Thus, the correct answer is Option (4).