For electron moving in nth orbit of H-atom the angular velocity is proportional to
Answer & explanation
Correct answer: option 4
Radius of nth orbital is $ r_n \propto n^2$
Velocity of electron in nth orbital is $ v_n \propto \frac{1}{n}$
$\Rightarrow \text{ Angular Velocity } \propto \frac{v_n}{r_n} = \frac{1}{n^3}$