(Answered)-What is the critical angle i c at the interface glass-cladding of - (2025 Updated Original AI-Free Solution

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Question

  1. What is thecritical angle?ic?at the interface glass-cladding of anoptical fiberwhose core has a refractive index equal to 1.5 and cladding with a refractive index 1.45?
    A) 15?
    B) 105?
    C) 86?
    D) 83?
    E) 75?