JEE Main & Advanced Physics Communication System / संचार तंत्र JEE PYQ-Communication System

  • question_answer
    The wavelength of the carrier waves in a modern optical fiber communication network is close to :   [JEE Main 8-4-2019 Morning]

    A) 600 nm

    B) 900 nm

    C) 2400 nm

    D) 1500 nm

    Correct Answer: D

    Solution :

    [d] To minimise attenuation, wavelength of carrier waves is close to 1500 nm.


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