The diagram shows a ray PQR travelling through a glass slab. Which opt – McqOptions

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1.	The diagram shows a ray PQR travelling through a glass slab. Which option in the table gives the correct name for all three rays?
A.	PQRIncident rayEmergent rayRefracted ray
B.	PQRIncident rayRefracted rayEmergent ray
C.	PQREmergent rayIncident rayRefracted ray
D.	PQREmergent rayRefracted rayIncident ray
Answer» C. PQREmergent rayIncident rayRefracted ray

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