A) \[\sqrt{R({{h}_{T}}+{{h}_{R}})}\]
B) \[\sqrt{2R/({{h}_{T}}+{{h}_{R}})}\]
C) \[\sqrt{R{{h}_{T}}}+\sqrt{2R{{h}_{R}}}\]
D) \[\sqrt{2R{{h}_{T}}}+\sqrt{2R{{h}_{R}}}\]
E) \[\sqrt{2R{{h}_{T}}}+\sqrt{R{{h}_{R}}}\]
Correct Answer: D
Solution :
If heights of transmitting and receiving antennas be\[{{h}_{T}}\]and\[{{h}_{R}}\]respectively, then effective range will be \[d=\sqrt{2R{{h}_{T}}}+\sqrt{2R{{h}_{R}}}\]
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