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papercollection2127 Diagram 19 shows a light ray travelling in medium P towards medium Q. The refractiveindex of P is higher than the refractive index of Q.Rajah 19 menunjukkan satu sinar cahaya yang bergerak dalam medium P menuju kemedium Q. Indeks biasan P lebih tinggi daripada indeks biasan Q.QPDiagram 19 / Rajah 19Which diagram shows a possible path of the light ray?Rajah manakah menunjukkan lintasan sinar cahaya yang mungkin betul?AQPBQPCQPDQP