Change of momentum of photon upon reflection

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SUMMARY

The change in momentum of a photon upon reflection from a perfect mirror is definitively calculated as 2h/λ, where h represents Planck's constant and λ is the wavelength of the photon. This conclusion is supported by the principles of quantum mechanics and the conservation of momentum. The discussion confirms that the initial assumption regarding the momentum change is accurate and aligns with established physics principles.

PREREQUISITES
  • Understanding of quantum mechanics principles
  • Familiarity with Planck's constant (h)
  • Knowledge of photon properties, including wavelength (λ)
  • Basic concepts of momentum in physics
NEXT STEPS
  • Study the implications of momentum conservation in quantum mechanics
  • Explore the relationship between wavelength and energy of photons
  • Investigate the behavior of photons in different reflective materials
  • Learn about the applications of photon momentum in technologies like laser systems
USEFUL FOR

Physics students, researchers in quantum mechanics, and professionals working in optical technologies will benefit from this discussion on photon momentum and reflection.

serverxeon
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1. What is the change in momentum of a photon when it bounces off a mirror?
(assuming it's a perfect mirror)


My guess is that it's [tex]2h/\lambda[/tex]. But i think it should be more complex than this.
 
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You're guess is correct.

I suspect it was more than a guess, and that you are actually thinking about it correctly! :smile:
 

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