JEE Main & Advanced Physics Communication System / संचार तंत्र Question Bank Self Evaluation Test - Communication System

  • question_answer
    An antenna is a device

    A) that converts electromagnetic energy into radio frequency signal

    B) that converts radio frequency signal into electromagnetic energy

    C) that converts guided electromagnetic waves into free space electromagnetic waves and vice-versa

    D) None of these

    Correct Answer: C

    Solution :

    [c] An antenna is a metallic structure used to radiate or receive EM waves.


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