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    Question: Does the momentum of light increase with intensity?

    • Keywords:
      • light,
      • momentum
    Asked by abpb266 to Beatrice, Charles, George, Kamal, Patricia on 16 Jan 2017.
    • Photo: Kamal Bhattacharya
      0

      Kamal Bhattacharya answered on 16 Jan 2017:


      So I’d say no and here is why. If you think about light as a bunch of massless photons, then the momentum p=E/c where E is energy and c the speed of light. So increase in intensity means more photons but not more energy, hence no increase in momentum.

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