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Question

A transmitting antenna is at a height of 20 m and receiving antenna is at a height of 80 m. The maximum distance between them for satisfactory communication is

A
16 km
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B
32 km
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C
48 km
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D
96 km
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Solution

The correct option is D 48 km
dmax=2RHT+2RHRHT=20mHR=80mdmax=2×6400×201000+2×6400×80100048km

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