The kinetic energy of an electron in the first excited state is

The Total Energy Of Electron In The Ground State Of Physics Question

The total energy of electron in the ground state of hydrogen atom is -13.6 eV. The kinetic energy of an electron in the first excited state is

Options

(a) 6.8 eV
(b) 13.6 eV
(c) 1.7 eV
(d) 3.4 eV

Correct Answer:

3.4 eV

Explanation:

Energy in the first excited state
= – 13.6 / n² = – 13.6 / 2² = – 3.4 eV
But K.E. = – (Total energy) = +3.4 eV.

Related Questions:

  1. The approximate depth of an ocean is 2700 m. The compressibility of water is
  2. A circular disc of radius R and thickness R/6 has moment of inertia I about an axis
  3. If a steel wire of length l and magnetic moment M is bent into a semicircular arc,
  4. Find the fundamental frequency of a closed pipe if the length of air column is 42m.
  5. The velocity of image when object and mirror both are moving towards each other

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Your email address will not be published.


*