JEE Main 2021 — Communication System Question with Solution
JEE Main 2021 (18 Mar Shift 2)
Question
A TV transmission tower antenna is at a height of . Suppose that the receiving antenna is at.
(i) ground level
(ii) a height of .
The increase in antenna range in case (ii) relative to case (i) is . The value of , to the nearest integer, is.
(i) ground level
(ii) a height of .
The increase in antenna range in case (ii) relative to case (i) is . The value of , to the nearest integer, is.
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Show full solutionCorrect answer: 50
Correct answer
50
Step-by-step explanation
Range
Range (i)
Range (ii)
where
Ans
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This is a previous-year question from JEE Main 2021, covering the Communication System chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.