Multiple choice

By mixing all of the colours of the visible s 6 pectrum we produce

  1. Infra-red light

  2. Black light

  3. Purple light

  4. White light
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

When all colors of the visible spectrum are combined in equal proportions, they produce white light. This principle was demonstrated by Isaac Newton using a prism - he showed that white light can be separated into colors and then recombined back into white light. This is why white light contains all colors.

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