Home / Year-wise PYQ / Dec 2005 (II) / Identify the correct sequence:

Identify the correct sequence:

Identify the correct sequence:

(A) Morse code โ€“ A. M. Radio – F.M. Radio – World Space Radio

(B) A. M. Radio – F.M. Radio – Morse code – World Space Radio

(C) World Space Radio โ€“ A. M. Radio – F.M. Radio – Morse Code

(D) World Space Radio – Morse code โ€“ A. M. Radio – F.M. Radio

Correct Ans: (A)

Explanation:
The correct sequence is (A) Morse code โ€“ A. M. Radio – F.M. Radio – World Space Radio. This sequence reflects the historical development of communication technologies:

  • Morse code was the earliest form of communication, used to transmit text messages over long distances using coded signals.
  • A. M. (Amplitude Modulation) Radio followed, allowing audio signals to be transmitted via radio waves.
  • F.M. (Frequency Modulation) Radio came next, offering improved sound quality over A. M. Radio.
  • World Space Radio represents the modern satellite radio technology, which uses satellites to transmit signals globally.

This progression shows the evolution of communication technology from simple coding systems to advanced satellite radio.

Assistant Professor
Dr. Ranjan Kumar

Founder & Educator

Leave a Comment

Your email address will not be published. Required fields are marked *

Free Demo Access

Unlock 2 Days Free Access

Complete this quick โ‚น0 process and start exploring JMC Study Hub resources in just 1 minute.

๐ŸŽ Valid for 2 Days | Cost โ‚น0
1

Visit Official Website

Go to www.jmcstudyhub.com

2

Login as Student

Click Student from the top menu and complete login/signup.

3

Or Use Android App

Download the app and follow the same student login process.

4

Select Free Demo Access

Choose Free Demo Access product with price โ‚น0.

5

Complete โ‚น0 Checkout

Finish checkout and enjoy free access instantly.

Ready to start?

Access resources, lectures, tests and scorecards for free.

Start Free Access
Quick process. Zero cost. Instant access.