什么是全反射?并且给出全反射的一个应用.
ANSWER:
Totalinternalreflectionisaphenomenoninwhichelectromagneticradiationinagivenmediumwhichisincidentontheboundarywithaless-densemedium(onehavingalowerindexofrefraction)atananglelessthanthecriticalangleiscompletelyreflectedfromtheboundary.
后半个问题我觉得举光纤就可以了
Opticalfibreisaflexibleopticallytransparentfiber,usuallymadeofglassorplastic,throughwhichlightcanbetransmittedbysuccessiveTIR.