1. Home
  2. |  
  3. CBSE Board|  

Communication Systems -Important Questions & Preparation Tips

Oct 10, 2013 17:51 IST

    CBSE Class 12th Chapter, Communication Systems carries 7 Marks in board exam. Experts of Jagranjosh.com offer the best practice material that covers all important questions so that students will not miss any portion while preparing for board exams or competitive exams. Consider the mentioned terms/questions at the time of studying.

    • What do you mean by communication? With the help of block diagram show a simple form of communication system? (very important)

    To get the CBSE class 12th GUESS PAPERS, Click Here

    • Explain:

              a) Transducer

              b) Transmitter

              c) Attenuation

              d) Amplification

              e) Range

              f) Modulation

              g) Demodulation

              h) Repeater

    To get the CBSE class 12th PRACTICE PAPERS, Click Here

    • Audible range of frequencies lies between?
    • Why only analog and not digital signals are considered for transmission?
    • Short wave communication over long distance is not possible via ground waves. Explain?

    To get the CBSE class 12th QUESTION PAPERS, Click Here

    • Use of remote control in TV working.
    • Electrical conductivity of earth’s atmosphere increases with altitude. Explain?
    • Explain the sky wave propagation. (very important)
    • What is LOS communication? Explain how it functions?
    • How is size of the antenna and effective power radiated by an antenna important for propagation?
    • Why is it important to convert low frequency message to high frequency message before transmission?

    To get the CBSE class 12th NCERT SOLUTIONS, Click Here

    • Explain the process of amplitude modulation? Its production and detection, with block diagrams? (very important)
    • Importance of power amplifier for the transmission of modulated signal.
    • Write short notes on:

              a) Mobile Telephony

              b) FAX

              c) Internet

    • What is modulation index?

    To get the Study Material for this Chapter Click Here

    Visit CBSE Section to get SOLVED & UNSOLVED question papers, Sample papers, online test with solution, study material, NCERT Solutions And Much More………

    DISCLAIMER: JPL and its affiliates shall have no liability for any views, thoughts and comments expressed on this article.

    Latest Videos

    Register to get FREE updates

      All Fields Mandatory
    • (Ex:9123456789)
    • Please Select Your Interest
    • Please specify

    • ajax-loader
    • A verifcation code has been sent to
      your mobile number

      Please enter the verification code below

    This website uses cookie or similar technologies, to enhance your browsing experience and provide personalised recommendations. By continuing to use our website, you agree to our Privacy Policy and Cookie Policy. OK
    X

    Register to view Complete PDF