What is the velocity of the hydrogen atom after absorbing the photon?

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SUMMARY

A stationary hydrogen atom with a mass of 1.67 x 10-27 kg absorbs a photon with an energy of 10.2 eV. The absorption of this photon results in the atom gaining kinetic energy, leading to a measurable velocity. The momentum conservation principle indicates that the atom will have a velocity post-absorption, calculated using the relationship between energy and momentum.

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  • Understanding of photon energy and its relation to atomic transitions
  • Basic knowledge of momentum conservation principles
  • Familiarity with the mass-energy equivalence concept
  • Knowledge of kinetic energy calculations
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  • Study the relationship between energy and momentum in quantum mechanics
  • Learn how to calculate the velocity of particles post-photon absorption
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dannie
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A stationary hydrogen atom with a mass of 1.67 x10^-27 kg absorbs a photon of light with an energy of 10.2eV.What is the velocity of the hydrogen atom after absorbing the photon?

This is my question:

Is it true that the atom has no speed since all the energy is completely absorbed at the energy level 10.2eV?
 
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hi dannie! :smile:

hint: momentum :wink:
 

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