JEE Main 2017PhysicsCommunication SystemEasyMCQ

JEE Main 2017Communication System Question with Solution

JEE Main 2017 (09 Apr Online)

Question

A signal is to be transmitted through a wave of wavelength λ, using a linear antenna. The length l of the antenna and effective power radiated Peff will be given, respectively, as-
(K is a constant of proportionality)

Choose an option

Show full solutionCorrect option: D
Correct answer
Dλ, Peff=Klλ2

Step-by-step explanation

Length of antenna = comparable to λ
Power P ( l λ ) 2 .

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About this question

This is a previous-year question from JEE Main 2017, 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.