Hobart, H. M. (Henry Metcalf), 1868-1946 ed · Philadelphia, J. B. Lippincott · leaf 145
ection ofthe incident wave normal in the medium ofhigher refractive index, then if the angle ofincidence P,ON be not too great, the lightwill pass out in a direction OPj^, where Sin P,^ONi _ iJ. of medium NSin PjON [1. of medium Nj As the angle PjON is increased, Pi^ONjincreases to a limit of 90°;… … Total Internal It«flection minimum angle P2ON at which this takesplace is termed the critical angle, [e. h. k.] Reflector.—When radiation reaches theboundary between two media, part is ab-sorbed by the second medium, part passesinto the second medium, and part is restoredas radiation penetrating…
Electrical engineering
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