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incidence

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Two mirrors 2007-10-24
From Peter:
The reflecting surfaces of two intersecting flat mirrors are at an angle θ (0° < θ < 90°). For a light ray that strikes the horizontal mirror, show that the emerging ray will intersect the incident ray at an angle β = 180° – 2θ.
Answered by Stephen La Rocque.
A point that a group of lines pass through 2000-12-05
From Ross:
A point that a group of lines pass through is called a________?
Answered by Chris Fisher.
 
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