C

Chandrakant • 6.73K Points
Tutor III Computer 

Q. Optical fiber uses principle of total internal reflection, which can occur in any transparent medium that has

  • (A) Lower index of refraction than the surrounding medium
  • (B) An equal index of refraction of the surrounding medium
  • (C) Higher index of refraction than the surrounding medium
  • (D) None of the above
Correct Answer - Option(C)

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