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A TV transmitting antenna is 81 m tall. ...

A TV transmitting antenna is 81 m tall. How much service area it can cover if the receiving antenna is at the ground level? (Radius of earth=`6.4xx10^(6)m`)

A

`3258km^(2)`

B

`4180km^(2)`

C

`2510km^(2)`

D

`1525km^(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
Service area it can cover, `A=pid^(2)`
`A=pi(2hR)=(22)/(7)xx2xx81xx6.4xx10^(6)m^(2)=3258km^(2)`
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