In the Bohr’s model of hydrogen atom, the ratio of the kinetic energy to the total

In The Bohrs Model Of Hydrogen Atom The Ratio Of Physics Question

In the Bohr’s model of hydrogen atom, the ratio of the kinetic energy to the total energy of the electron in nth quantum state is

Options

(a) (-1)
(b) (+1)
(c) (-2)
(d) (+2)

Correct Answer:

(-1)

Explanation:

In Bohr’s model of hydrogen atom, the kinetic energy of the electron in nᵗʰ state is given by
K = me⁴ / 8ε₀²h²n² = (13.6 / n²) eV
where, me⁴ / 8ε₀²h² = 13.6 eV
The potential energy of electron in nᵗʰ state is given by
U = -2me⁴ / 8ε₀²h²n² = (-27.2 / n²) eV
Total energy of electron in nᵗʰ state is given by
E = K + U = (me⁴ / 8ε₀²h²n² ) – (2me⁴ / 8ε₀²h²n²)
E = -me⁴ / 8ε₀²h²n² = (-13.6 / n ²) eV
.·. K / E = -1

Related Questions:

  1. A boat taken 2h to travel 8km and back in still water.If the velocity of water 4 km/h
  2. An object is attached to the bottom of a light vertical spring and set vibrating.
  3. Which one of the following is not a unit of young’s modulus?
  4. In insulators (CB is Conduction Band and VB is Valence Band)
  5. If c is the velocity of light in free space, the time taken by light to travel

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.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*