Question

Given below are two statements:
Statement I: In hydrogen atom, the frequency of radiation emitted when an electron jumps from lower energy orbit $(E_1)$ to higher energy orbit $(E_2)$, is given as $hf = E_1 – E_2.$
Statement II: The jumping of electron from higher energy orbit $(E_2)$ to lower energy orbit $(E_1)$ is associated with frequency of radiation given as
$f=\frac{(E_2−E_1)}{h}$ This condition is Bohr’s frequency condition.
In the light of the above statements, choose the correct answer from the options given below:

• A. Both statement I and statement II are true
• B. Both statement I and statement II are false
• C. Statement I is correct but statement II is false
• D. Statement I is incorrect but statement II is true

Answer 1

Answer: (D)

Statement I is incorrect but statement II is true

Answer 2

Radiation is not emitted but absorbed when an electron jumps from low energy to high energy.

Also, $E_2 – E_1$ is the energy of photon

$⇒ E_2 – E_1 = hf$

$⇒f=\frac{E_2−E_1}{h}$

The correct option is (D): Statement I is incorrect but statement II is true