Q. The energy of electron in first excited state of H-atom is $- 3.4\ eV$ its kinetic energy is
A) $- 3.4\ eV$
B) $+ 3.4\ eV$
C) $- 6.8\ eV$
D) $6.8\ eV$
Explanation
(b) Kinetic energy = |Total energy|
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.