22 JEE Main 2022 Communication System previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2022 previous-year questions from the Communication System chapter of Physics. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Communication System chapter hub.
A square wave of the modulating signal is shown in the figure. The carrier wave is given by C t = 5 sin 8 π t Volt…
The maximum and minimum voltage of an amplitude modulated signal are 60   V and 20   V respectively. The perc…
A signal of 100 THz frequency can be transmitted with maximum efficiency by
Find the modulation index of an AM wave having 8   V variation where maximum amplitude of the AM wave is 9  …
Only 2 % of the optical source frequency is the available channel bandwidth for an optical communicating system operati…
A FM Broad cast transmitter, using modulating signal of frequency 20 kHz has a deviation ratio of 10 . The Bandwidth re…
Match List I with List II List I List II (A) Facsimile (I) Static Document Image (B) Guided media Channel (II) Local Br…
A sinusoidal wave y t = 40 sin 10 × 10 6 π t is amplitude modulated by another sinusoidal wave x t = 20 sin 1…
The required height of a TV tower which can cover the population of 6 . 03 lakh is h . If the average population densit…
Match List-I with List-II List-I List-II (A) Television signal I. 03 KHz (B) Radio signal II. 20 KHz (C) High Quality M…
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