A stationary hydrogen atom emits a photon corresponding to first line of Lyman series. Recoil velocity of…

A stationary hydrogen atom emits a photon corresponding to first line of Lyman series. Recoil velocity of the atom is nearly
  1. $3.2 \mathrm{~ms}^{-1}$
  2. $0.63 \mathrm{~ms}^{-1}$
  3. $8.2 \mathrm{~ms}^{-1}$
  4. $0.1 \mathrm{~ms}^{-1}$

Solution

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Asked in: AP EAMCET 2017 (25 Apr Shift 2)

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