| ⇦ | 
| ⇨ |
The energy of a hydrogen atom in the ground state is -13.6 eV. The energy of a He⁺ ion in the first excited state will be
Options
(a) – 13.6 eV
(b) – 27.7 eV
(c) – 54.4 eV
(d) – 6.8 eV
Correct Answer:
– 13.6 eV
Explanation:
energy of a H-like atom in its nth state is given by
E = – Z² x 13.6 / n² eV
For, first excited state of He⁺, n= 2, Z= 2
Eₕₑ⁺ = – 4/2² x 13.6 = – 13.6 eV
Related Questions: - A body is thrown vertically up with a velocity u.It passes three points A,B and C
- A bimetallic strip consists of metals X and Y. It is mounted rigidly at the base as shown
- Suppose the kinetic energy of a body oscillating with amplitude A and at a distance
- A motor-cyclist drives a motor cycle in a vertical circle. His minimum velocity
- In a common emitter (CE) amplifier having a voltage gain G, the transistor
Topics: Atoms and Nuclei
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A body is thrown vertically up with a velocity u.It passes three points A,B and C
- A bimetallic strip consists of metals X and Y. It is mounted rigidly at the base as shown
- Suppose the kinetic energy of a body oscillating with amplitude A and at a distance
- A motor-cyclist drives a motor cycle in a vertical circle. His minimum velocity
- In a common emitter (CE) amplifier having a voltage gain G, the transistor
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