| ⇦ | 
| ⇨ |
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: - The difference in the variation of resistance with temperature in a metal
- If the focal length of a concave mirror is 50 cm, then where should the object
- Dimensions of Torque are
- Two parallel beams of positron moving in the same direction will
- Photons of energy 6 eV are incident on a metal surface whose work function is 4 eV.
Topics: Atoms and Nuclei
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The difference in the variation of resistance with temperature in a metal
- If the focal length of a concave mirror is 50 cm, then where should the object
- Dimensions of Torque are
- Two parallel beams of positron moving in the same direction will
- Photons of energy 6 eV are incident on a metal surface whose work function is 4 eV.
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