$A$ transmitting antenna at the top of a tower has height $32\, m$ and the height of the receiving antenna is $50\, m$. What is the maximum distance between them for satisfactory communication in line of sight $(LOS)$ mode? ........$km$

  • A
    $55.4$
  • B
    $45.5$
  • C
    $54.5$
  • D
    $455$

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