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Photon help

  1. Feb 8, 2008 #1
    I have a question that I can't figure out. In the Sun, it takes several hundred thousand years for a photon released in the core to reach the surface. Use the speed of light and the radius of the sun to estimate the escape time for a photon from the center of the sun if there were no interaction.

    The suns radius is 696,000km and light travels at 3 x10c/s.....this is where I get lost. Can anyone help me?
  2. jcsd
  3. Feb 8, 2008 #2


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    Staff: Mentor

    Do you know the equation for relating distance, speed, and time?
  4. Feb 8, 2008 #3

    It's just a case of plugging the numbers into the equation.

    Russ would this qualify as a homework question?
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