A TV tower has a height of 150m.The area of the region covered by the TV broadcast is (Radius of earth = 6.4×106m )
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a
9.6π×108m2
b
19.2π×109m2
c
19.2π×1010m2
d
1.92π×103km2
answer is D.
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Detailed Solution
h=150m,R=6.4×106m Distance upto which the transmission could be viewed d=2hR Total area over which transmission could be viewer =πd2=2πhR=1920π×106m2=1.92π×103km2