Photons reflecting from a plane mirror
Animation showing a light source firing photons at a plane mirror. The photons are reflected in a way analogous to balls bouncing from a surface (it doesn't really happen this way). Although photons are massless, they do carry energy at the speed of light and this gives them momentum.
Animation ID: Photon_Plane_Mirror_265
copyright Russell Kightley
Animation resolution: 1920x1080 pixels @ 60.0 fps, ~5.1 Mbits/s