Geometric Optics. Light and Geometric Optics – Are you Ready? (25 minutes) Group activity Answer questions on chart paper 5-10 minutes students brainstorm and record ideas Groups will take turns in front of class explaining their response. What is Light?
one form this energy takes is light, which the Sun emits in all directions
This calculator doesn’t need a battery to keep going. Just plenty of sunlight
And they don’t
need water to
Light from incandescence
Note that wavelength is defined as the distance from one crest (or trough) to the next
White visible light is made up of asequence of colours called visible light.
Traditionally there are 7 colours red, orange, yellow, green, blue indigo, and violet