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A 1 km long microwave link uses two antennas each having 30dB gain. If the power transmitted by one antenna is 1 W at 3 GHz, the power received by the other antenna is approximately

(a) 98.6 μ W

(b) 76.8 μ W

(c) 63.4 μ W

(d) 55.2 μ W

1 Answer

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by (56.9k points)
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Best answer

The correct option is (c) 

Explanation:

Given,

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