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_
Related questions
Where in the eye is the image formed before signals travel to the brain?What does a converging lens do to the light rays that pass through it?A ray of light passes from air into a glass block at an angle. What happens to the ray?A ray of light strikes a flat mirror at 30 degrees to the normal line. At what angle does A shirt looks green in white light. What is happening to the light that lands on it?How does the energy of light travel from the Sun to the Earth?