KCET 2026 Communication Systems Weightage: It is expected that the Communication Systems chapter will carry around 3 per cent of the overall Physics section weightage. Aspirants preparing to appear for the KCET 2026 examination can expect nearly 2-3 questions from this chapter. The Communication Systems syllabus covers topics such as propagation of electromagnetic waves, free space and optical fibres, transmission bandwidth for coaxial cable, range, amplification, attenuation, receiver, transmitter, noise, signal, transducer, and block diagram of a generalised communication system. A thorough reading and revision of this chapter is essential to secure 2-3 marks from this unit in the exam.

According to the official schedule, the KCET 2026 exam is expected to be held in April 2026. Candidates can go through the KCET 2026 Syllabus and prepare well for the examination.

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Expected KCET 2026 Communication Systems Weightage

Refer to the table below to know the communication systems' weightage for the KCET 2026 exam .

Also Check - KCET Subject Wise Syllabus 2026

KCET 2026 Communication Systems Topics & Expected Questions

Here are the topics that are included in the chapter and the number of questions that will be asked from this chapter in KCET 2026.

Best Books for KCET 2026

The best books for KCET 2026 preparation has been provided below.

1. Pradeep’s Fundamental Physics for class 11 & 12, By KL Gomber, KL Gogia
2. NCERT Class 11 and 12 Textbooks
3. Physics for Karnataka COMEDK & CET, By Thomson Press India Ltd
4. Physics 1st year PUC, By AS Govind

KCET 2026 Communication Systems Sample Questions

Check the sample questions and get an idea about the kind of questions that will be asked from this chapter in the KCET 2026 exam.

1. A super heterodyne receiver with an IF of 450 kHz is tuned to a signal at 1200 kHz. The image frequency is —-------------?

• 750 kHz
• 900 kHz
• 1650 kHz
• 2100 kHz

Correct Answer: D

2.  A broadcast radio transmitter reduces 10 kW, when the AM modulation percentage is 60. How much is the carrier power?

• 6 kW
• 8.47 kW
• 4 kW
• None of the above

Correct Answer: B

3. Is a hamming code for transmitting a data of 7 bit, how many parity bits are used?

• One
• Two
• Three
• Four

Correct Answer: D

4. On which principle does the optical fibre work?

• Scattering of light
• Total internal absorption
• Total internal reflection
• Optical rotation

Correct Answer: C

Preparation Tips for KCET Communication Systems 2026

Check the preparation tips for the KCET 2026 exam here on this page.

1. Do not get stuck in the complex concepts; instead, take help from the good reference books and have clarity of these concepts. If you are able to understand them instead of just grabbing them, it would be better for you.
2. Take up the complex concepts first, and then take up the less complex concepts. Complete the difficult concepts first and make notes for them for the end revisions.
3. Look for the KCET previous year papers and check out the communication systems questions from the question paper. You can solve the entire paper as an effective practice if you can just take up the questions from this chapter, if other chapters are not prepared. This will help evaluate the performance for the exam.
4. Do not consider the chapters with less weightage unimportant and skip them. Each chapter included in the KCET 2026 exam is important for the applicants to score well. So it is important to study all the chapters properly.
5. Make notes so that it is easy for you to revise all the chapters and concepts easily as the exam approaches.

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