The Law of Reflection: The angle of incidence (i) equals the angle of reflection
(r). Both angles are measured from the Normal Line (a line exactly 90° to the
surface).
Interact: Drag the yellow laser emitter. Drag
the protractor and snap it to the mirror! Use the green
handle to rotate it. Draw a box in empty space
to zoom, then drag to pan!
Challenge: Drag the orange node to set the reflected ray. Match the incident angle (i) from
the normal line!