Physics

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At what angle to the surface must a submerged diver in a lake look toward the surface to see the setting sun just along the horizon?

  • Physics -

    Let A be the required angle to the VERTICAL.
    Snell's law says that, in this case,
    N sin A = 1*sin 90 = 1
    sin A = 1/N = 0.75
    A = 48.6 degrees
    where N is the refractive index of water.
    The angle they want is 90 - A

  • Physics -

    1sin(theta)=1.33sin (45)
    (Theta)=sin^-1 (0.940452019)
    therefore Theta= 19.87

  • Physics -

    1sin(theta)=1.33sin (45)
    (Theta)=sin^-1 (0.940452019)
    therefore Theta=19.87 degrees

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