[单选题]
Which phrase correctly completes the following sxl +wnpy.h7k4 entenc+ edp:i+x qws/gj;-fm(ah q033mb l hpe?
In a ray diagram showing reflection, the angle of incidence is the angle between
A. the incident ray and the boundary surface.
B. the incident ray and the normal.
C. the incident ray and the reflected ray.
D. the reflected ray and the boundary surface.
Post time 2024-1-26 22:03:40