Question

The frequency of emission line for any transition in positronium atom (consisting of a positron and an electron) is x times the frequency for the corresponding line in the case of H atom, where x is –

• A. $\sqrt{2}$
• B. 1/2$\sqrt{2}$
• C. 1/2 $\sqrt{2}$
• D. 1/2

Answer 1

Answer: (D)

1/2

Answer 2

Rydberg's constant determines the frequencies. We have R µ m. So, modified R for positronium atom is half of H-atom. Hence frequencies are reduced to half