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AP EAMCET202317 May 2023Morning ShiftPhysicsCommunication SystemActual

The radio horizon of the transmission of an antenna placed on 20^ th floor in a shopping mall, where the height of each floor is 2 ~m is (Radius of earth is 6.4 10^6 ~m )

Options

  1. A22.6 ~km
  2. B45 ~km
  3. C36 ~km
  4. D67.5 ~km

Correct answer

A. 22.6 ~km

Step-by-step solution

aligned & H _ r =20 2=40 ~m & ~d _ m = 2 H _ r R = 2 40 6.4 10^6 =22.6 ~km aligned

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