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Human Eye and Colourful World — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceHuman Eye and Colourful World1 Mark
MCQ
The phenomenon due to which white light splits into seven colours on passing through a prism is called $ ........... ?$
  • A
    Reflection
  • B
    Refraction
  • ✓
    Dispersion
  • D
    All the above
✓

Answer

Correct option: C.
Dispersion
The phenomenon due to which white light splits into seven colours on passing through a prism is called dispersion.
White light is made up of seven bands of colors each having different wavelengths.
Upon passing through a medium, each of the colors travels at different speeds and hence has different angles of refraction leading to the splitting of the light i.e. dispersion.

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