| ⇦ | 
| ⇨ |
The total energy of an electron in the first excited state of hydrogen atom is about -3.4 eV. Its kinetic energy in this state is
Options
(a) 3.4 eV
(b) 6.8 eV
(c) -3.4 eV
(d) -6.8 eV
Correct Answer:
3.4 eV
Explanation:
KE. = |(1/2) P.E.|
But P.E. is negavite
.·. Total energy = |(1/2) P.E.| – P.E. = – P.E. / 2 = – 3.4 eV
.·. K.E. = + 3.4 eV
Related Questions: - A bubble is rising from bottom of a lake. The volume of bubble becomes
- In forward biasing of the p-n junction
- Oil spreads over the surface of water where as water does not spread
- A body of mass 3 kg is under a constant force which cause a displacement
- The fossil bone has a ¹⁴C:¹²C ratio, which is [1/16] of that in a living animal
Topics: Atoms and Nuclei
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A bubble is rising from bottom of a lake. The volume of bubble becomes
- In forward biasing of the p-n junction
- Oil spreads over the surface of water where as water does not spread
- A body of mass 3 kg is under a constant force which cause a displacement
- The fossil bone has a ¹⁴C:¹²C ratio, which is [1/16] of that in a living animal
Topics: Atoms and Nuclei (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply