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 )

Correct answer: D. 4 × 10 ^ 6 Radius of range covered by tower, d = 2hR Population covered = ρ × ^ 2 = ρ × π ( 2hR ) = 4 × 10 ^ 6

NTA Abhyas 2020

NTA Abhyas 2020 · Physics · Communication System

Calculate how much population would be covered by T.V. broadcast if...

Calculate how much population would be covered by T.V. broadcast if height of TV tower is

\text{100 m}

and the average population density around the tower is

1000{km}^{- 2}

(Take radius of earth as

\text{R} = 6.4 \times {10}^{6} \text{m}

)

D. $4 \times {10}^{6}$

Radius of range covered by tower, $d = \sqrt{2hR}$

Population covered $= ρ \times \pid^{2} = ρ \times \pi ( 2hR ) = 4 \times {10}^{6}$