Question

Height of T.V tower is $h_T$. The area of transmission of T.V waves is $\propto$ ______

• A. $h_T^2$
• B. $h_T^{1/2}$
• C. $h_T^{1/3}$
• D. $h_T$

Answer 1

Answer: (D)

$h_T$

Given:

Height of T.V tower $=h_T$

The distance of the transmission is given by

$d=\sqrt{2h_{T}R}$

The area of transmission is given as:

$A=\pi d^2$

$A=\pi 2h_{T}R$
So $area\propto h_T$

Option $D$ is correct.