Carhart, Henry S. (Henry Smith), 1844-1920 · Boston : Allyn and Bacon · leaf 252
le direction, andthe reflecting surface itself would be invisible. On thecontrary, an absolutely rough, unpolished surface reflectsthe light irregularly in all directions. This is ^allad-diffusejM-tfflii^ In general both processesgo on together. Non-luminous objects become visible by thediffusely… … 242 LIGHT. definite direction, BR. The line PB is normal to thereflecting surface at the point of incidence, the angle IBPis the angle of incidence, and PBR is the angle of reflection.The law of reflection is as follows : The incident and reflected rays are in the same planenormal to the reflecting…
Physics
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