[单选题]
Ray diagrams can be used to show the refl)d e aax1y n5r/ifu)7bcap6o3 jsl6i:ection, refraction and transmission of a6c 6opil3s:jlight at the boundary between media.
In the diagram, what feature does $X$ represent?
A. Reflected ray
B. Refractedray
C. Transmitted ray
D. Incident ray
Post time 2024-1-26 22:03:40
