Physics - Communication System
Practise 12 COMEDK previous year questions on Communication System, compiled from papers spanning 2012 to 2023. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty COMEDK tests.
Communication System has been asked in 7 of the 15 years of COMEDK papers analysed (2012–2026), with 12 questions in all. 75% of them were easy, 25% moderate and 0% tough. Most of its questions came from 2014, with 4 questions that year.
The chapter's 3 topics are not weighted equally: Communication System (6 questions, 50%), Modulation (4 questions, 33%), and Propagation of EM Waves (2 questions, 17%) have been asked the most. Over the last five years the most frequent topics have been Propagation of EM Waves (2) and Modulation (1).
- 1A TV tower has a height . The maximum distance upto which TV transmission can be received is (Take, radius of the earth as2023 (Memory Based)Propagation of EM Waves
- 2A TV tower has a height . The maximum distance upto which TV transmission can be received is (Take, radius of the earth as2023 (Morning Shift)Propagation of EM Waves
- 3Maximum amplitude of message signal in amplitude modulation is . If the amplitude of carrier wave is , then modulation index of modulated wa2022Modulation
- 4In detector, output circuit consists of and . The frequency of carrier signal which it can detect is2021Communication System
- 5Ground waves have wavelength2020Communication System
- 6A TV tower is high. How much more height is to be added to it, if its coverage range is to become double?2015Modulation
- 7A message signal of frequency and peak value of is used to moderate a carrier of frequency and peak voltage . The modulation index and side 2015Modulation
- 8The increase in the height of the tower of height to get its coverage range tripled is2014Modulation
- 9A repeater in TV transmission is2014Communication System
- 10The waves suitable for transmission of radio signals are2014Communication System
- 11The TV signals have a bandwidth of . The number of TV channels that can be accommodated with a band of is2014Communication System
- 12The layer in the Earth's atmosphere which reflects radio waves from the Earth, thus helping radio communication is2012Communication System
Frequently Asked Questions
1.How many questions are available for Communication System?
This chapter includes 12 questions compiled from COMEDK papers spanning 2012 to 2023.
2.Are these questions only from COMEDK, or from other exams too?
These are COMEDK questions specifically for the Communication System chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.
3.Is Communication System an important chapter for COMEDK Physics?
Communication System has appeared in 7 of the 15 years of COMEDK papers covered here, with 12 questions across 8 papers - about 2 per paper it appears in.
4.What is the difficulty level of Communication System questions in COMEDK?
Of the 12 questions analysed for this chapter, 75% are easy, 25% moderate and 0% tough. 2014 had the most, with 4 questions.
5.Which topics in Communication System should I focus on?
These topics have carried the most weightage in Communication System:
- Communication System - 6 questions (50%)
- Modulation - 4 questions (33%)
- Propagation of EM Waves - 2 questions (17%)