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Homework Help: Radiation pressure

  1. Nov 8, 2008 #1
    b]1. The problem statement, all variables and given/known data[/b]
    Estimate the radiation pressure due to a 75 Watt bulb at a distance of 8 cm from the center of the bulb.

    2. Relevant equations
    S=(E x B) , P = S/c

    3. The attempt at a solution
    I'm not sure were to start. How can I determine the value of E from a 75 Watt bulb.
  2. jcsd
  3. Nov 8, 2008 #2


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    Science Advisor
    Homework Helper

    You need to know how the momentum and energy of a photon are related to its wavelength.
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