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Question
A T.V tower has a height of 100 m. How much population is covered by T.V broadcast, if the average population density around the tower is 1000/ km2? (R = 6400 km)
Options
40.19 × 105
19.5 × 106
29.5 × 107
9 × 104
MCQ
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Solution
40.19 × 105
Explanation:
d = `sqrt(2"RH")`
N = πd2σ
= 2πRh σ
= 2 × 3.14 × 6400 × 0.1 × 1000
= 2 × 3.14 × 6.4 × 105
= 40.19 × 105
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