⇦ | ⇨ |
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: - The amplitude of S.H.M. y=2 (sin 5πt+√2 cos 5πt) is
- 540 g of ice at 0° C is mixed with 540 g of water at 80° C. The final temperature
- The magnifying power of a convex lens of focal length 10 cm, when the image
- A wire mesh consisting of very small squares is viewed at a distance
- If two bodies are projected at 30⁰ and 60⁰ respectively with the same velocity, then
Topics: Atoms and Nuclei
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The amplitude of S.H.M. y=2 (sin 5πt+√2 cos 5πt) is
- 540 g of ice at 0° C is mixed with 540 g of water at 80° C. The final temperature
- The magnifying power of a convex lens of focal length 10 cm, when the image
- A wire mesh consisting of very small squares is viewed at a distance
- If two bodies are projected at 30⁰ and 60⁰ respectively with the same velocity, then
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