Easy MCQ +4 / -1 PYQ · JEE Mains 2022

Given below are two statements :

Statement I : In hydrogen atom, the frequency of radiation emitted when an electron jumps from lower energy orbit (E1) to higher energy orbit (E2), is given as hf = E1 $-$ E2

Statement II : The jumping of electron from higher energy orbit (E2) to lower energy orbit (E1) is associated with frequency of radiation given as f = (E2 $-$ E1)/h

This condition is Bohr's frequency condition.

In the light of the above statements, choose the correct answer from the options given below :

  1. A Both Statement I and Statement II are true.
  2. B Both Statement I and Statement II are false.
  3. C Statement I is correct but Statement II is false.
  4. D Statement I is incorrect but Statement II is true. Correct answer

Solution

<p>Radiation is not emitted but absorbed when an electron jumps from low energy to high energy.</p> <p>Also, E<sub>2</sub> $-$ E<sub>1</sub> is the energy of photon</p> <p>$\Rightarrow$ E<sub>2</sub> $-$ E<sub>1</sub> = hf</p> <p>$\Rightarrow f = {{{E_2} - {E_1}} \over h}$</p>

About this question

Subject: Physics · Chapter: Atoms and Nuclei · Topic: Bohr's Model of Hydrogen Atom

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