JEE Main 2022 · 25 Jul · Shift 2 · Physics Q54

PhysicsInteger+4 / -1Question 54 of 90

$\dfrac x{x+4}$ is the ratio of energies of photons produced due to transition of an electron of hydrogen atom from its

(i) third permitted energy level to the second level and

(ii) the highest permitted energy level to the second permitted level.

The value of $x$ will be ______.

Your answer

Answer and worked solution

Official answer: 5

Energies $\frac14-\frac19=\frac5{36}$ and $\frac14=\frac9{36}$ : $\frac59=\frac x{x+4}$ , $x=5$ .

Answer: 5

JEE Main 2022 · 25 Jul · Shift 2, Physics question 54