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Question: Answered & Verified by Expert
Calculate how much population would be covered by T.V. broadcast if height of TV tower is 100 m and the average population density around the tower is 1000 km-2 (Take radius of earth as  R=6.4× 10 6  m )
PhysicsCommunication SystemJEE Main
Options:
  • A 6×106
  • B 2×106
  • C 12×106
  • D 4×106
Solution:
2125 Upvotes Verified Answer
The correct answer is: 4×106

Radius of range covered by tower, d=2hR

Population covered =ρ×πd2=ρ×π(2hR)=4×106

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