To investigate the reflection of light by different types of surface, and the refraction of light by different substances. Remove the block. Join the crosses to show the paths of the light rays ...

When light travels from air into glass it slows down because glass is more (optically) dense than air. This change in speed can cause the light to bend at the boundary between the two transparent ...

Everyone knows about reflecting light with a mirror ... multiple microwave radiation beams off each other, creating a time reflection. Although the popular reporting talks about ‘turning ...