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When a beam of white light passes through a glass prism, the colour of light beam that deviates the least is

Options

  1. ABlue
  2. BRed
  3. CGreen
  4. DViolet

Correct answer

B. Red

Step-by-step solution

In refraction through a glass prism, the emergent ray is deviated from its original direction by a certain angle. This angle is the angle of deviation. During dispersion of white light, the colour which deviates the least is red.

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