JEE Main201912 Jan 2019Evening ShiftPhysicsCommunication SystemActual
To double the covering range of a TV transmitting tower, its height should be multiplied by:
Options
- A1 2
- B4
- C2
- D2
Correct answer
B. 4
Step-by-step solution
The range of a tower in the communication system is given by Range = 2 h R Here, h = Height of the tower, R = radius of Earth Given, The range of tower is to be doubled. As, Range ∝ h , to make the range double, the height h have to be made 4 times.