MCQ
When a ray of light enters from a denser medium to a rarer medium then:
  • A
    the light ray bends towards the normal
  • the speed of light increases
  • C
    the angle of incidence is greater than the angle of refraction
  • D
    its wavelength decreases.

Answer

Correct option: B.
the speed of light increases
(b)
the speed of light increases
Explanation:
When a ray of light travels from optically denser medium to optically rarer medium, the wavelength increases and hence speed also increases.

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