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Homework Help: Law of reflection problem

  1. Nov 30, 2007 #1
    1. The problem statement, all variables and given/known data

    In an amusement park maze with all the walls covered with mirrors, Pilar sees Hernando's reflection from a series of three mirrors. If the reflected angle from mirror 3 is 52° for the mirror arrangement shown in the figure, in which = 12°, what is the angle of incidence on mirror 1?


    2. Relevant equations
    law of reflection:
    angle incident = angle reflected (with respect to normal)

    3. The attempt at a solution

    Working backwards, I arrived at 40 degrees.
    Last edited: Nov 30, 2007
  2. jcsd
  3. Nov 30, 2007 #2


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    Angle [itex]\beta[/itex] = 12°?
  4. Nov 30, 2007 #3
    Yes, alpha = 52, beta = 12.

    Just hope if anyone can confirm my answer. I worked it through and did not have to use trig.
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