filters

• what colours does a red filter absorb and what colours does it reflect

  the red filter absorbs all colours and reflects red light
• what colours are the only colours that can be shone on magenta

  blue and red
• what happens if green is shone on magenta

  the colour will turn black
• what happens if a colour (e.g. green) is shone onto a colour that doesnt include that colour (e.g. magenta)

  it turns black because that colour doesnt include the one being shone on (e.g. magenta contains red and blue so if green is shone onto that, there is no colour since green isnt in magenta)
• what happens if white is shone on any colour

  all colours reflect white because all the colours are in white