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B How would I calculate how much light is being bent in a certain area?

  1. Jan 18, 2017 #1
    Hey guys, I'm trying to teach myself physics and ran into a problem. I've recently been trying to calculate how much light is being bent in a certain area. I think we'd have to use integrals? I came up with this little formula, but not sure if it's right. If anyone can help me, that'd be much appreciated! :))

    $$L = \int_x^y MGc^{2} dx$$

    How did I get this equation? First I thought how would I do this? I realized because we're calculating 2 points in the area of a wave, we'd have to use an integral. And then, I multiplied M (Mass of the object) by G (Gravitational constant) to signify that mass and gravity are involved. I then multiplied this by c^2 (speed of light, every second) because I decided that if we do this we'd get the speed of light by M and G. And of course, I then used dx. Thanks!

    All help is appreciated! (Please remember, I'm new to astrophysics)
  2. jcsd
  3. Jan 18, 2017 #2

    Kai Spackman

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    Gold Member

    Have you tried working out the Index of Refraction? This might help!
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