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A certain distance from a transmitting t...

A certain distance from a transmitting tower a receiver tower of height `20 m` is used to receive direct signal. Another tower is installed beyond the first along the same line of sight to receive the signals from the same transmitter. Its height is `44%` more than the first receiving tower. Then the separation between the two receiving towers is

A

`6.4 km`

B

`3.2 km`

C

`1.6 km`

D

`0.8 km`

Text Solution

Verified by Experts

The correct Answer is:
B
distance between transmitter and reciever is `x` and between transmitter and second reciever is `y`.
`x=sqrt(2Rh_(T))+sqrt(2Rh_(1))`
`y=sqrt(2Rh_(T))+sqrt(2R(1.44h_(1))`
find `y-x`
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