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

  • question_answer
    A signal is to be transmitted through a wave of wavelength  using a linear antenna. The length l of the antenna and effective power radiated  will be given respectively as - (K is a constant of proportionality) [JEE Online 09-04-2017]

    A)

    B)

    C)

    D)

    Correct Answer: D

    Solution :

    [d] Length of antenna = comparable to \[\lambda \]
    Power \[P=\mu {{\left( \frac{1}{\lambda } \right)}^{2}}\]
    here \[\mu =K\]


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