Veda · OUT OF PURE CURIOSITY
Where does a mirror send light?
Ray at 20° · Ray at 40° · Ray at 60°
Ray at 20°
The yellow ray hits the mirror; the blue ray reflects. Angles are measured from the dashed perpendicular to the surface.
Ray at 40°
Change the incoming ray’s direction. The reflected ray turns too: both angles are equal.
Ray at 60°
Try a larger angle. The ray goes in another direction, but equal-angle reflection still holds.
For adults · discuss together
An ideal flat mirror. Rays are drawn as visible lines although usually invisible from the side in clean air.
Before experience
Ask: “What do you think will happen?” Let the child check his guess first.
After the experience
What has changed? What remains the same? Where can you notice a similar phenomenon?
