MCQ
When an electron in hydrogen atom is excited from its $3^{\text {rd }}$ to $5^{\text {th }}$ stationary orbit, tbe change in angular momentum of electron is (Planck's constant: $h =6.62 \times 10-{ }^{34} Js$ ) ____________.
- ✓$2.11 \times 10^{-34} Js$
- B$5.26 \times 10^{-34} Js$
- C$3.16 \times 10^{-34} Js$
- D$1.08 \times 10^{-34} Js$