When an electron in hydrogen atom is excited, from its 4th to 5th stationary orbit, the change in angular momentum of electron is (Planck?s constant: \[h=6.6\times {{10}^{-34}}J\text{-s}\]) [AFMC 2000; Pb. PET 2001]

\[2.08\times {{10}^{-34}}\,J\text{-}s\]

\[4.16\times {{10}^{-34}}\,J\text{-}s\]

\[3.32\times {{10}^{-34}}\,J\text{-}s\]

\[1.05\times {{10}^{-34}}\,J\text{-}s\]

\[2.08\times {{10}^{-34}}\,J\text{-}s\]

When an electron in hydrogen atom is excited, from its 4th to 5th stat

1.	When an electron in hydrogen atom is excited, from its 4th to 5th stationary orbit, the change in angular momentum of electron is (Planck?s constant: \[h=6.6\times {{10}^{-34}}J\text{-s}\]) [AFMC 2000; Pb. PET 2001]
A.	\[4.16\times {{10}^{-34}}\,J\text{-}s\]
B.	\[3.32\times {{10}^{-34}}\,J\text{-}s\]
C.	\[1.05\times {{10}^{-34}}\,J\text{-}s\]
D.	\[2.08\times {{10}^{-34}}\,J\text{-}s\]
Answer» D. \[2.08\times {{10}^{-34}}\,J\text{-}s\]