Ohlone College Laser Beam Sketch of The Setup Sketch Making

I’m studying for my Physics class and don’t understand how to answer this. Can you help me study?

Consider red laser light of wavelength LaTeX: 632  nm


nm that travels along the LaTeX: x-


axis through a slab of a specially designed material of length LaTeX: 102  cm


cm with refractive index that varies as LaTeX: n(x) = 1.5 + bx^2


(x)=1.5+bx2, where LaTeX: b


is a constant and LaTeX: x


represents position in LaTeX: meters


eters relative to the left end of the slab. Light enters on the left end of the slab at LaTeX: x = 0



  1. Draw a clear Figure with labels to show the setup.
  2. What are the units of LaTeX: b

    ? Justify.

  3. Find the value of LaTeX: b

    if light takes LaTeX: 6.8  ns


    ns to travel through the material. Show all work in clear steps.

  4. Find the total phase change of light during its travel through the material. Show all work in clear steps.
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