JEE Main 202429 Jan, Morning shiftPhysicsMediumAtoms and Nuclei183× since 2002When a hydrogen atom going from n=2n=2n=2 to n=1n=1n=1 emits a photon, its recoil speed is x5 m/s\frac{x}{5} \mathrm{~m} / \mathrm{s}5x m/s. Where x=x=x= ________. (Use, mass of hydrogen atom =1.6×10−27 kg=1.6 \times 10^{-27} \mathrm{~kg}=1.6×10−27 kg)Your answerType your answer. Integers and decimals are accepted.CheckSkip · show solution
