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A TV transmission tower has a height of 140 m and the height of the receiving antenna is 40 m. What is the maximum distance upto which signals can be broadcasted from this tower is LOS (Line of Sight) mode ? (Given : radius of earth = 6.4 × 10 6 m).

1. 40 km
2. 65 km
3. 48 km
4. 80 km

Correct answer: 65 km

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