| ⇦ | 
| ⇨ |
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: - Which one of the following statements is WRONG in the context of X-rays generated
- A 200 W sodium street lamp emits yellow light of wavelength 0.6 µm
- Figure below shows two paths that may be taken by a gas to go from a state A
- A U²³⁵ reactor generates power at a rate of P producing 2×10⁸ fission per second.
- A transformer having efficiency of 90% is working on 200 V and 3kW power supply
Topics: Atoms and Nuclei
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which one of the following statements is WRONG in the context of X-rays generated
- A 200 W sodium street lamp emits yellow light of wavelength 0.6 µm
- Figure below shows two paths that may be taken by a gas to go from a state A
- A U²³⁵ reactor generates power at a rate of P producing 2×10⁸ fission per second.
- A transformer having efficiency of 90% is working on 200 V and 3kW power supply
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