Physics - Communication System
Practise 20 MHTCET previous year questions on Communication System, compiled from papers spanning 2009 to 2020. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty MHTCET tests.
Communication System has been asked in 7 of the 17 years of MHTCET papers analysed (2007–2026), with 20 questions in all. 95% of them were easy, 5% moderate and 0% tough. Most of its questions came from 2020, with 12 questions that year. In the last three years (2024–2026) it had 0 questions across 59 papers, about 0 per paper.
The chapter's 3 topics are not weighted equally: Communication System (9 questions, 45%), Modulation (8 questions, 40%), and Propagation of EM Waves (3 questions, 15%) have been asked the most.
- 1Modulation is a process of superposing20 Oct, 2020 (M)Modulation
- 2Identify the 'INCORRECT' statement from the following.20 Oct, 2020 (E)Modulation
- 3In the process of space communication, use of modem is necessary. In which one of the following modes modem acts as a modulator and a demodu19 Oct, 2020 (M)Propagation of EM Waves
- 4A carrier wave of peak voltage 16 volt is used to transmit a signal. If the modulation index is , the peak voltage of the modulating signal 19 Oct, 2020 (E)Modulation
- 5In amplitude modulation,16 Oct, 2020 (M)Modulation
- 6In commmunication system, a repeater is used to extend the range of transmission. It is the combination of16 Oct, 2020 (E)Communication System
- 7In communication system, for a given block diagram of receiver, the boxes ' ' and "Y' respectively represent15 Oct, 2020 (M)Communication System
- 8In communication system, the range for line of sight propagation in case of earth is 'd', for the height of antenna (h). If 'h' is doubled t15 Oct, 2020 (E)Modulation
- 9According to theoretical study of radiation from a same linear antenna, the power radiated is proportional to wavelength14 Oct, 2020 (M)Propagation of EM Waves
- 10A signal of frequency is amplitude modulated on a carrier wave of frequency . The upper and lower sideband frequencies in the resultant sign13 Oct, 2020 (M)Modulation
- 11The digital signals are used for transmission in communication system. They are13 Oct, 2020 (E)Communication System
- 12In communication system, what is used to extend the range of a communication?12 Oct, 2020 (E)Communication System
- 13A layer of atmosphere that reflects medium frequency radio waves which is ineffective during night, is02 May, 2019 (M)Communication System
- 14In 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 2019 (M)Modulation
- 15In frequency modulated wave2019 (E)Communication System
- 16In amplitude modulation2018Modulation
- 17In communication system the process of superimposing a low frequency signal on a high frequency wave is known as2017Communication System
- 18The maximum frequency of transmitted radio waves above which the radio waves are no longer reflected back by ionosphere is ______ ( N = maxi2016Communication System
- 19Which of the following is the communication channel in case of radio communication?2011Communication System
- 20The waves which are reflected back to the earth by ionos phere is2009Propagation of EM Waves
Frequently Asked Questions
1.How many questions are available for Communication System?
This chapter includes 20 questions compiled from MHTCET papers spanning 2009 to 2020.
2.Are these questions only from MHTCET, or from other exams too?
These are MHTCET 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 MHTCET Physics?
Communication System has appeared in 7 of the 17 years of MHTCET papers covered here, with 20 questions across 20 papers - about one per paper it appears in.
4.What is the difficulty level of Communication System questions in MHTCET?
Of the 20 questions analysed for this chapter, 95% are easy, 5% moderate and 0% tough. 2020 had the most, with 12 questions.
5.Which topics in Communication System should I focus on?
These topics have carried the most weightage in Communication System:
- Communication System - 9 questions (45%)
- Modulation - 8 questions (40%)
- Propagation of EM Waves - 3 questions (15%)
6.Is Communication System's weightage in MHTCET going up or down?
Across all 20 papers analysed, Communication System has averaged about 1.0 questions per paper. In the last three years (2024–2026), that average has fallen, at about 0.0 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.