An electron jumps from n=5 to n=3. What will be change in its angular momentum?

h/2π h/4π h/3π h/π

h/π

Angular Momentum : L = nh/2π  $\Delta L = \frac{\Delta n h}{2\pi} = \frac{(5-3)h}{2\pi} = \frac{h}{\pi}$