COMEDK · Physics · 31. Communication System
A TV tower is \(120 \mathrm{~m}\) high. How much more height is to be added to it, if its coverage range is to become double?
- A \(120 \mathrm{~m}\)
- B \(240 \mathrm{~m}\)
- C \(360 \mathrm{~m}\)
- D \(480 \mathrm{~m}\)
Answer & Solution
Correct Answer
(C) \(360 \mathrm{~m}\)
Step-by-step Solution
Detailed explanation
Initial height of TV tower, \(h_{1}=120 \mathrm{~m}\) Coverage range of TV tower is given as \[ d=\sqrt{2 R h} \] where, \(R\) is radius of the earth.…
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