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Q: A _____ is formed when each colour of the white light is refracted in the prism at a different angle.
  • A. Colour spread
  • B. Rainbow
  • C. Colour image
  • D. Spectrum
Correct Answer: Option D - A spectrum is formed when each colour of the white light is refracted in the prism at a different angle. An ordinary triangular prism can separate white light into its constituent colours is called as spectrum.
D. A spectrum is formed when each colour of the white light is refracted in the prism at a different angle. An ordinary triangular prism can separate white light into its constituent colours is called as spectrum.

Explanations:

A spectrum is formed when each colour of the white light is refracted in the prism at a different angle. An ordinary triangular prism can separate white light into its constituent colours is called as spectrum.