Reflection of Parallel Rays by a Sphere
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The green sphere reflects the incoming orange parallel rays that hit the surface at different angles. The angle between an incoming ray and its normal equals the angle between the outgoing ray and the normal, but with the sign reversed.
Contributed by: Michael Schreiber (March 2011)
Open content licensed under CC BY-NC-SA
"Reflection of Parallel Rays by a Sphere"
Wolfram Demonstrations Project
Published: March 7 2011