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Unformatted text preview: , from positive to neg. Ray tracing for a concave mirror • The parallel ray ( P ray) reflects through the focal point. • The focal ray ( F ray) reflects parallel to the axis. • The central ray ( C ray) reflects back along its incoming path. Ray tracing for a converging lens • The P ray approaches the lens parallel to the optic axis and refracts through the focal point on the far side. • The F ray emerges from the near focal point and passes parallel to the optic axis. • The C ray goes through the middle of the lens. It will not be deflected....
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This note was uploaded on 04/21/2008 for the course PHYS 208 taught by Professor Rao during the Spring '08 term at Clemson.
- Spring '08