Topic Menu

Cyber-chess a chess instruction site

The Physics of Colour - Filters

Filters only allow certain wavelengths of light through them, they absorb the others.

  • A red filter will only allow red light to pass through it - it will absorb blue and green.
  • A magenta filter will allow the blue and red light through but will absorb the green.

So if we pass white light through a yellow and then a cyan filter what colour will we see passing through the combination of filters?

So if we pass white light through a magenta and then a green filter what colour will we see passing through the combination of filters?

Click here for filters used with prisms

Links:

Questions

 

Now try some questions on Colour.