Difficulty distribution
How the classified questions are distributed by difficulty.
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Practice Communication Systems - Modern Physics - Physics previous year questions organised from real papers, with year-wise coverage and clear topic navigation.
Every graph below is calculated only from this selection.
Year-wise coverage for Communication Systems. Each bar uses a separate theme-derived color.
How the classified questions are distributed by difficulty.
MCQ, numerical, multiple-select and other formats found in these papers.
Top subjects by unique question coverage.
Top topics across the included previous year papers.
Top subtopics inside this exact selection.
Question coverage for the most populated papers. Every active PYP paper remains listed below.
Newest papers appear first. Sort by year, question coverage or name.
| Paper | Year / session | Questions in this view | Open |
|---|---|---|---|
| MHT CET 2020 16TH OCTOBER EVENING SHIFT | 2020 | 1 | View paper |
| MHT CET 2020 19TH OCTOBER EVENING SHIFT | 2020 | 1 | View paper |
| MHT CET 2019 2ND MAY EVENING SHIFT | 2019 | 1 | View paper |
| MHT CET 2019 2ND MAY MORNING SHIFT | 2019 | 1 | View paper |
| MHT CET 2019 3RD MAY MORNING SHIFT | 2019 | 1 | View paper |
Practice every matching question in batches of 20, with every available option.
In frequency modulated wave
A layer of atmosphere that reflects medium frequency radio waves which is ineffective during night, is
In amplitude modulation, the amplitude of carrier wave is $A_c$ and that of the modulating signal is $A_m$. In practice, the ratio of $A_m$ to $A_c$ is kept less than or equal to one, to avoid
In communication system, a repeater is used to extend the range to transmission. It is the combination of
A carrier wave of peak voltage 16 V is used to transmit a signal. If the modulation index is $75 \%$, the peak voltage of the modulating signal is