If the height of the transmitting tower is in | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) The area $A$ covered by a transmitting tower of height $h$ is given by the formula $A = 2 \pi R h$,where $R$ is the radius of the Earth.From this

Vedclass · Accepted Answer

$30$

Vedclass · Answer

(C) The area $A$ covered by a transmitting tower of height $h$ is given by the formula $A = 2 \pi R h$,where $R$ is the radius of the Earth.From this relation,it is clear that $A \propto h$.If the height $h$ is increased by $30 \%$,the new height $h'$ becomes $h' = h + 0.30h = 1.30h$.Since $A \propto h$,the new area $A'$ will be $A' = 2 \pi R h' = 2 \pi R (1.30h) = 1.30 A$.The percentage increase in the area is given by $\frac{A' - A}{A} 	imes 100 = \frac{1.30A - A}{A} 	imes 100 = 0.30 	imes 100 = 30 \%$.Therefore,the area covered by the tower increases by $30 \%$.

If the height of the transmitting tower is increased by $30 \%$,then the area covered by it increases by (in $\%$)

Similar Questions

An $FM$ broadcast transmitter,using a modulating signal of frequency $20\,kHz$,has a deviation ratio of $10$. The bandwidth required for transmission is $.......kHz$.

If a message signal of frequency $f_{m}$ is amplitude modulated with a carrier signal of frequency $f_{c}$ and radiated through an antenna,the wavelength of the corresponding signal in air is ....... .

$A$ message signal of frequency $3\,kHz$ is used to modulate a carrier signal of frequency $1.5\,MHz$. The bandwidth of the amplitude modulated wave is

The characteristic impedance of a coaxial cable is typically in the range of ..........

$A$ communications Earth satellite:

Vedclass Test Series

Exam Paper Generator

Online Exam Module