what would happen if you see a red light through a green paper
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.If you shine torch light onto a sheet of paper, the light from the torch appears white. The light given out by torch lights, light globes and the Sun is white light. Some sources of light, for example coloured neon lights or LEDs, do not produce white light, but coloured light.
If you want to know what colour make-up or clothes will appear under normal circumstances, you need to check the colours in white light. Checking the colours under coloured light can cause them to look very different.
:-)
.If you shine torch light onto a sheet of paper, the light from the torch appears white. The light given out by torch lights, light globes and the Sun is white light. Some sources of light, for example coloured neon lights or LEDs, do not produce white light, but coloured light.
If you want to know what colour make-up or clothes will appear under normal circumstances, you need to check the colours in white light. Checking the colours under coloured light can cause them to look very different.
:-)
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If you pass white light through a red filter, then red light comes out the other side. This is because the red filter only allows red light through. The other colours (wavelengths) of the spectrum are absorbed. Similarly, a green filter only allows green light through. This is called colour by subtraction.
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