JEE Main & Advanced Physics Communication System / संचार तंत्र Question Bank Mock Test - Electronic Devices Communication Systems

  • question_answer
    If the area to be covered for TV telecast is doubled then height of transmitting antenna (TV tower) will have to be

    A) Doubled

    B) Halved

    C) Quadrupled       

    D) Kept unchanged

    Correct Answer: A

    Solution :

    [a] Area covered by TV signals \[=\pi {{d}^{2}}\] (Where d is the range) Where R is the radius of the earth and h is height of antenna \[\therefore A\propto h\]  


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