COMEDK-UGET SERIES Physics
Communication Systems
7 previous year questions.
Volume: 7 Ques
Yield: Medium
High-Yield Trend
2
2021 2
2015 2
2014 1
2012 Chapter Questions 7 MCQs
01
PYQ 2012
medium
physics ID: comedk-u
The layer in earth's atmosphere which reflects radio waves from the earth thus, helping radio communication is
1
Stratosphere
2
Mesosphere
3
Troposphere
4
Ionosphere
02
PYQ 2014
medium
physics ID: comedk-u
The signals have a bandwidth of . The number of channels that can be accommodated with a band of is
1
2
3
4
03
PYQ 2014
medium
physics ID: comedk-u
The increase in the height of the tower of height to get its coverage range tripled is
1
800 m
2
1600 m
3
900 m
4
700 m
04
PYQ 2015
medium
physics ID: comedk-u
The wireless communication frequency bands for Cellular Mobile Radio (mobile to base station) are in range of
1
76-88 MHz
2
900-1000 MHz
3
896-901 MHz
4
896-1000 MHz
05
PYQ 2015
easy
physics ID: comedk-u
A message signal of frequency and peak value of is used to moderate a carrier of frequency and peak voltage . The modulation index and side bands produced are
1
and ,
2
and ,
3
and ,
4
and ,
06
PYQ 2021
medium
physics ID: comedk-u
An optical fibre communication system works on a wavelength of . The number of subscribers it can feed, if a channel requires 20 kHz, are:
1
2
3
4
None of these
07
PYQ 2021
medium
physics ID: comedk-u
In a detector, the output circuit consists of and . The frequency of carrier signal it can detect is:
1
2
0.1 kHz
3
4
About Communication Systems - COMEDK-UGET
Communication Systems is a vital chapter for COMEDK-UGET aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.
By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.
Frequently Asked Questions
Why focus on Communication Systems PYQs?
Analyzing PYQs for this specific chapter reveals the most frequently tested concepts and the typical complexity of questions, allowing you to tailor your study plan efficiently.
How to best use this analysis?
Review the topic breakdown to see which sub-topics within Communication Systems carry the most weight. Then, tackle the questions iteratively to solidify your understanding.