JEE Main 2021 — Communication System Question with Solution
JEE Main 2021 (26 Aug Shift 2)
Question
A transmitting antenna at top of a tower has a height of , and the height of receiving antenna is, . What is the range of communication for the line of sight (LOS) mode?
[use radius of the earth
[use radius of the earth
Choose an option
Show full solutionCorrect option: C
Correct answer
C
Step-by-step explanation
The formula of range of the antenna is given by the formula,., here is the radius of the earth then, putting the values, the range .
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Communication System chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
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.