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Ray Optics — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsRay Optics1 Mark
MCQ
When white light enters a prism, it gets split into its constituent colours. This is due to
  • A
    (a) High density of prism material
  • ✓
    (b) Because $\mu$ is different for different $\lambda$
  • C
    (c) Diffraction of light
  • D
    (d) Velocity changes for different frequencies
✓

Answer

Correct option: B.
(b) Because $\mu$ is different for different $\lambda$
(b) For different colours $\mu$ changes so deviation of different colour is also different.

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