White light is passed through a prism and a band of colours appears. What does this show?
AWhite light has only one colour
BWhite light is made of hot air
CWhite light is a mix of colours
DWhite light carries no energy
Answer & Solution
Correct answer: C. White light is a mix of colours
1. A prism bends each colour of light by a slightly different amount.
2. The colours therefore come out spread apart instead of overlapping.
3. Seeing the band of colours shows that white light was a mixture all along.
_Source: Siyavula Natural Sciences Grade 8 (CC BY 4.0), Spectrum of visible light_
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