JEE Main 2019 — Communication System Question with Solution
JEE Main 2019 (11 Jan Shift 2)
Question
An amplitude modulated signal is plotted below:
Which one of the following best describes the above signal?
Which one of the following best describes the above signal?
Choose an option
Show full solutionCorrect option: C
Correct answer
C
Step-by-step explanation
After analysing the graph we may conclude that
(i) Amplitude varies as or
(ii) Two time period as
s (signal wave) (carrier wave)
So, equation of AM signal is
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This is a previous-year question from JEE Main 2019, 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.