Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Inverse square law .intensity-brightness-luminosity-distance

  1. Aug 18, 2003 #1
    Inverse square law.....intensity-brightness-luminosity-distance

    can anyone help me answer this question please
    ---------------------
    recall the inverse square law of intensity of light and use it to relate the brightness of a star to its luminosity and distance from an observer.
    ---------------------
     
  2. jcsd
  3. Aug 18, 2003 #2

    HallsofIvy

    User Avatar
    Staff Emeritus
    Science Advisor

    I would recommend three things: first look up the "inverse square law" and write it down. Second, look up the definition of "brightness". Third, look up the definition of "luminosity".

    Now think carefully about the difference between "brightness" and "luminosity" of a stand and put those three things together.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Similar Discussions: Inverse square law .intensity-brightness-luminosity-distance
  1. Inverse Square Law (Replies: 9)

  2. Inverse square law (Replies: 8)

Loading...