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JEE Main & Advanced Physics Communication System / संचार तंत्र Question Bank Communication

  • question_answer
    If m1 and m2 are the refractive indices of the materials of core and cladding of an optical fibre, then the loss of light due to its leakage can be minimised by having                        [BVP 2003]

    A)            m1 > m2                                    

    B)            m1 < m2

    C)            m1 = m2                                    

    D)            None of these

    Correct Answer: A

    Solution :


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