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Q. A beam of light travelling at a velocity of V m/s is incident at an angle 45° on a glass. Slab of refractive index 1.5. What is the velocity of the beam of light inside the slab?

  • (A) V
  • (B) 2V / 3
  • (C) V /√ 2
  • (D) None of these
  • Correct Answer - Option(B)
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