Q. Three photons coming from excited atomic hydrogen sample are observed, their energies are 12.1 eV, 10.2 eV and 1.9 eV. These photons must come from
A) Single atom
B) Two atoms
C) Three atoms
D) Either two or three atom
Explanation
(c) These photons will be emitted when electron makes transitions in the shown way.
So, these transitions is possible from two or three atoms.
From three atoms separately.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.