At certain distance from a transmitting tower a receiver tower of height `180m` 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 `21%` more than the first receiving tower. Then the separation between the two receiving towers isA. `6.4 km`B. `3.2 km`C. `1.6 km`D. `4.8 km`

At certain distance from a transmitting tower a receiver tower of heig

1.	At certain distance from a transmitting tower a receiver tower of height `180m` 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 `21%` more than the first receiving tower. Then the separation between the two receiving towers isA. `6.4 km`B. `3.2 km`C. `1.6 km`D. `4.8 km`
Answer» Correct Answer - D `d=sqrt(2Rh_(2))-sqrt(2Rh_(1))`, `h_(2)=h_(1)-21%` of `h_(1)`

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