MHT CET · Physics · Communication System
In communication system, the range for line of sight propagation in case of earth is 'd', for the height of antenna (h). If 'h' is doubled then the new range is
- A \(\frac{\mathrm{d}}{\sqrt{2}}\)
- B \(\frac{\sqrt{2}}{\mathrm{~d}}\)
- C \(\frac{\mathrm{d}}{2}\)
- D \(\sqrt{2} \mathrm{~d}\)
Answer & Solution
Correct Answer
(D) \(\sqrt{2} \mathrm{~d}\)
Step-by-step Solution
Detailed explanation
\(d = \sqrt{2Rh}\) \(d' = \sqrt{2R(2h)} = \sqrt{4Rh} = \sqrt{2} \sqrt{2Rh}\)
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