| ⇦ | 
| ⇨ |
The total energy of electron in the ground state of hydrogen atom is -13.6 eV. The kinetic energy of an electron in the first excited state is
Options
(a) 6.8 eV
(b) 13.6 eV
(c) 1.7 eV
(d) 3.4 eV
Correct Answer:
3.4 eV
Explanation:
Energy in the first excited state
= – 13.6 / n² = – 13.6 / 2² = – 3.4 eV
But K.E. = – (Total energy) = +3.4 eV.
Related Questions: - Under the action of a force F=cx, the position of a body changes from 0 to x.The work done
- A piece of iron is heated in a flame. It first comes dull red then becomes reddish
- Two springs with spring constants K₁=1500 N/m and K₂=3000 N/m
- An engine has an efficiency of 1/6. When the temperature of sink is reduced
- A black body radiates 20 W at temperature 227⁰C. It temperature of the black body
Topics: Atoms and Nuclei
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Under the action of a force F=cx, the position of a body changes from 0 to x.The work done
- A piece of iron is heated in a flame. It first comes dull red then becomes reddish
- Two springs with spring constants K₁=1500 N/m and K₂=3000 N/m
- An engine has an efficiency of 1/6. When the temperature of sink is reduced
- A black body radiates 20 W at temperature 227⁰C. It temperature of the black body
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