The area to be covered for T.V. telecast is doubled, then the height of transmitting antenna (T.V. tower) will have to be :
Correct answer: B. Doubled
- A. Halved
- B. Doubled
- C. Quardupled
- D. Kept unchanged
Explanation
Correct answer is 'doubled'.The relation between the height of the transmission antenna and the area covered by the TV telecast is given as:dmax = √(2RHT)⇒ HT ∝ d²max ∝ AThus, if the area to be covered is to be doubled, the height of the antenna has to be doubled.
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