What gives rise to the line spectra observed in atoms?
A
change of an electron from a higher to a lower energy level in the atom
B
disturbed protons in the nucleus
C
excitation of an electron in the atom
D
kinetic energy of a moving atom
E
potential energy of an electron inside an atom
Verified Correct Answer: A.
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #42826)