in concave mirror and convex mirror
what the didfference between the ray coming from infinity and the ray from f2 or btw f and p,like try to understand my question,i like speed of light is same everywhere and parellel too so like the rays are same so how is the reflection making a difference until in betweeen c and p where it is in the area of the what circle that forms
here is a image if you still doesnt get the idea

why is the A,B,C different in image i know the the way the ray diagram works but why does it work that way?