Question

If the height of the tower used for LOS communication is increased by 21%, the percentage change in range is?

• A. 5%
• B. 10%
• C. 15%
• D. 12%

Answer 1

Answer: (B)

10%

Answer 2

$d=\sqrt{2Rh}, d\propto \sqrt{h}$
$d'\propto \sqrt{1.21h} = 1.1h$
Percentage change in d = 10%

So, the correct option is (B): 10%