Optics > Geometric Optics > Reflection DCS#  6A10.20
DIFFUSE AND SPECULAR REFLECTION
set up for specular reflection demo
APPARATUS
mercury arc lamp 214-03-A
glass plate 101-06-E6
ground glass plate 101-06-E4
black paper 101-06-E6
DESCRIPTION
Turn off the overhead lights and shine light on a smooth glass plate to show the specularly reflected beam on the wall or ceiling.  Shine light on a rough surface to show diffuse reflection.