NCERT Exemplar Class 12 Physics Solutions for Chapter 15 - Communication Systems

NCERT class 12 Physics exemplar for Chapter 15 Communication Systems provides here are written by experts after extensive research on each and every topic to provide apt and authentic information to the students. If you go through previous year question papers you will get a clear picture of questions on exemplar book are directly asked in the examination. In order to score good marks, it is very important for the students to solve and get well versed with the exemplary questions and problems given in this exemplary book.

This NCERT class 12 Physics exemplar for Chapter 15 pdf present different varieties of questions like MCQ’S, fill in the blanks, match the following, true or false, short answer questions along with numerical problems, important formulas, exercises and assignments. This book helps you to understand the concepts clearly and help you to memorise the topic for a long period of time.

Class 12 Physics NCERT exemplar for Communication Systems

Communication systems are simply a collection of systems used for transmission, connection, communication and interconnection. These systems are categorically arranged into three different types on the basis of uses such as Media, Technology and Application area. Sensors, Transducers, Emitters and Amplifiers are all examples of modern technology which are used as components in the majority of modern devices.

Major examples of general communication systems

  1. E-mail
  2. Internet
  3. Television
  4. Radio
  5. Computer

Concepts involved in chapter 15 Communication System are:

    1. Introduction
    2. Elements Of A Communication System
    3. Basic Terminology Used In Electronic Communication Systems
    4. Bandwidth Of Signals
    5. Bandwidth Of Transmission Medium
    6. Propagation Of Electromagnetic Waves
      1. Ground wave
      2. Skywaves
      3. Space wave
    7. Modulation And Its Necessity
    8. Size of the antenna or aerial
    9. Effective power radiated by an antenna Ex 15.7.3 – Mixing up of signals from different transmitters
    10. Amplitude Modulation
    11. Production Of Amplitude Modulated Wave
    12. Detection Of Amplitude Modulated Wave.


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