CUET Preparation Today
The height of a TV tower is 180 m. To what distance the transmission can be made from this tower, if the radius of earth is $6.4 × 10^6 m$? |
18 km 90 km 48 km 64 km |
48 km |
The correct answer is Option (3) → 48 km The distance (d) on the horizon, $d=\sqrt{2Rh}$ [h = height of tower] $=\sqrt{2×(6.4×10^6)×180}$ $≃4.8×10^4m=48km$ |
