| ⇦ | 
| ⇨ |
The excitation potential of hydrogen atom in the first excited state is
Options
(a) 13.6 V
(b) (-13.6 V)
(c) 10.2 V
(d) (-10 V)
Correct Answer:
10.2 V
Explanation:
Energy of electron in ground state of hydrogen atom,
E₁ = -1.36 eV [E(n) = (-13.6 / n²) eV]
Energy of electron in first excited state of hydrogen atom,
E₂ = -13.6 / 2² = – 3.4 eV
Hence, the excitation energy of hydrogen atom in first excited state,
E = E₂ – E₁ = – 3.4 – (-13.6) = 10.2 eV
Therefore, excitation potential is 10.2 V.
Related Questions: - A short linear object of length L lies on the axis of a spherical mirror of focal
- Aperture of human eye is 0.2 cm. The minimum magnifying power of a visual
- In a circuit, the current lags behind the voltage by a phase difference of π/2.
- An LCR circuit contains resistance of 100 ohm and a supply of 200 volt at 300 radian
- The radius of the first orbit of the hydrogen atom is a₀. The radius of the second orbit
Topics: Atoms and Nuclei
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A short linear object of length L lies on the axis of a spherical mirror of focal
- Aperture of human eye is 0.2 cm. The minimum magnifying power of a visual
- In a circuit, the current lags behind the voltage by a phase difference of π/2.
- An LCR circuit contains resistance of 100 ohm and a supply of 200 volt at 300 radian
- The radius of the first orbit of the hydrogen atom is a₀. The radius of the second orbit
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