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JEE Main & Advanced Physics Communication System / संचार तंत्र Question Bank Numerical Value Type Questions - Communication Systems

  • question_answer
    A radar has a power of 1 kW and is operating at a frequency of 10 GHz. It is located on a mountain top of height 500 m. The maximum distance (in km) upto which it can detect object located on the surface of the earth (Radius of earth\[=6.4\times {{10}^{6}}m\]) is:

    Answer:

    80


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