The recoil speed of hydrogen atom after it emits a photon in going from `n = 2 state to n =
Channel: Doubtnut
Date: 2020-07-26

The recoil speed of hydrogen atom after it emits a photon in going from `n = 2 state to n = 1` state is nearly `[Take R_(oo) = 1.1 xx 10^(7) m and h = 6.63 xx 10^(-34) J s]`