===2.7 Two H-atoms collide head-on. After the collision, the net KE of both atoms is zero. Each atomthen emits a photon of wavelength = 121.6 nm, due to a (n 2) → (n 1) electrontransition. The rest mass of an H-atom is 1.673 × 10-27 kg. At what speed were the twoatoms moving before the collision? Were relativistic correction necessary in the calculation ofthe speed?

Step 1: Calculate the energy of the emitted photon. Each hydrogen atom emits a photon of wavelength…

Answered: = == 2.7 Two H-atoms collide head-on.…

Modern Physics

3rd Edition

ISBN:9781111794378

Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Chapter4: The Particle Nature Of Matter

Section: Chapter Questions

Problem 42P

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