AP EAMCET · PHYSICS · Communication System
If the height of the transmitting tower is increased by \(30 \%\), then the area covered by it increases by
- A 10\%
- B \(21 \%\)
- C \(30 \%\)
- D \(60 \%\)
Answer & Solution
Correct Answer
(C) \(30 \%\)
Step-by-step Solution
Detailed explanation
Area covered by a transmission tower of height \(h\) is \(\begin{aligned} & A=2 \pi R h \\ \Rightarrow \quad & A \propto h \end{aligned}\) So, if height is increased by \(30 \%\), area of coverage also increase by \(30 \%\).
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