The time period of revolution of electron in its ground state orbit in a hydrogen atom is 1.6 × 10^–16 s. The frequency of revolution of the electron in its first excited state (in Hz) is: The time period of revolution of electron in its ground state orbit in a hydrogen atom is 1.6 × 10^–16 s. The frequency of revolution of the electron in its first excited state (in Hz) is: September 19, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice Set 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related