UrbanPro
true
Worksheet Homepage
Worksheet Icon

Free CBSE Worksheets

Get a custom worksheet to practice!

Board

subject

Select a Class

Please select another category

Select Chapter(s)

Chapters & Subtopics

Advanced»

Select type of questions

Select the length of worksheet

Questions (5 to 100)

No of questions have to be between 5 to 100

Free CBSE - Class 12 Physics - Communication Systems worksheets

Sample Worksheets

Here is a Sample Worksheet for you to Practice. Download this worksheet to see the answers.

1.
Compute the LC product of a tuned amplifier circuit required to generate a carrier wave of 1 MHz for amplitude modulation.
2.
Why is a AM signal likely to be more noisy than a FM signal upon transmission through a channel?
3.
A 100m long antenna is mounted on a 500m tall building. The complex can become a transmission tower for waves with $\lambda$
1. ~ 400 m. 2. ~ 25 m. 3. ~ 150 m. 4. ~ 2400 m.
4.
A speech signal of 3 kHz is used to modulate a carrier signal of frequency 1 MHz, using amplitude modulation. The frequencies of the side bands will be
1. 1.003 MHz and 0.997 MHz. 2. 3001 kHz and 2997 kHz. 3. 1003 kHz and 1000 kHz. 4. 1 MHz and 0.997 MHz.
5.
A message signal of frequency $\omega_m$ is superposed on a carrier wave of frequency $\omega_c$ to get an amplitude modulated wave (AM). The frequency of the AM wave will be
1. $\omega_m$. 2. $\omega_c$. 3. $\frac{\omega_c + \omega_m}{2}$. 4. $\frac{\omega_c - \omega_m}{2}$.
6.

I-V characteristics of four devices are shown in Fig. 15.1 Identify devices that can be used for modulation:

1.

‘i’ and ‘iii’.

2.

only ‘iii’.

3.

‘ii’ and some regions of ‘iv’.

4.

All the devices can be used.

7.
A male voice after modulation-transmission sounds like that of a female to the receiver. The problem is due to
1. poor selection of modulation index (selected $0 < m < 1$) 2. poor bandwidth selection of amplifiers. 3. poor selection of carrier frequency 4. loss of energy in transmission.
8.
Identify the mathematical expression for amplitude modulated wave:
1. $A_c \sin [\{\omega_c + k_1 v_m(t)\}t + \phi]$. 2. $A_c \sin \{\omega_c t + \phi + k_2 v_m(t)\}$. 3. $\{A_c + k_2 v_m(t)\} \sin (\omega_c t + \phi)$. 4. $A_c v_m(t) \sin (\omega_c t + \phi)$.
9.
An audio signal of 15kHz frequency cannot be transmitted over long distances without modulation because
1. the size of the required antenna would be at least 5 km which is not convenient. 2. the audio signal can not be transmitted through sky waves. 3. the size of the required antenna would be at least 20 km, which is not convenient. 4. effective power transmitted would be very low, if the size of the antenna is less than 5 km.
10.
Audio sine waves of 3 kHz frequency are used to amplitude modulate a carrier signal of 1.5 MHz. Which of the following statements are true?
1. The side band frequencies are 1506 kHz and 1494 kHz. 2. The bandwidth required for amplitude modulation is 6kHz. 3. The bandwidth required for amplitude modulation is 3 MHz. 4. The side band frequencies are 1503 kHz and 1497 kHz.
- OR -

Build a Custom CBSE - Class 12 Physics - Communication Systems worksheets

Download free printable Communication Systems Worksheets to practice. With thousands of questions available, you can generate as many Communication Systems Worksheets as you want.

Free Communication Systems Worksheets

Our worksheets are designed to help students explore various topics, practice skills and enrich their subject knowledge, to improve their academic performance. Designed by experts who have extensive experience and expertise in teaching a subject, these worksheets will improve your child's problem-solving skills and subject knowledge in a fun and interactive manner.

Check out our free customized worksheets across school boards, grades, subjects, and levels of subject knowledge. You can download, print, and share these worksheets with anyone, anywhere, anytime!

Top Tutors who teach CBSE - Class 12 Physics Communication Systems

(14)
superTutorSuper Tutor
locationImg Parsudih, Jamshedpur
3 yrs of Exp students 21 students
1685 hrs of classes completed
rsIcon 500 per hour
Be the better version of yourself
Online Classes Online Classes
regularClasses Tutor's home
Aakarshan

Simply he is doing very well, and my child is also learning the things with great enthusiasm.Debojit sarkar ji is simply phenomenal

Skills: Mathematics , Physics

Hrithik C. Communication Systems in Noida
(1067)
superTutorSuper Tutor
locationImg Knowledge Park II, Noida
9 yrs of Exp students 599 students
43061 hrs of classes completed
rsIcon 400 per hour
I have been mentoring students since 9 years to students all over India
Online Classes Online Classes
Sapna

I’m very thankful to have such an excellent Physics and Chemistry tuition sir for my son.He explains even difficult concepts in a very simple and clear way, making both subjects much easier to understand. His focus on strong fundamentals and regular practice has really improved my son's confidence and performance. He is patient, dedicated, and always ready to clear doubts. His guidance and motivation have made a big difference in his learning. I highly recommend him to any student who wants strong conceptual clarity and great results.

Skills: Physics , Chemistry

(53)
superTutorSuper Tutor
locationImg Pandri, Raipur
5 yrs of Exp students 40 students
2169 hrs of classes completed
rsIcon 520 per hour
IIT(ISM)-Dhanabd | Physics Faculty for JEE, NEET, Class XI & XII.
Online Classes Online Classes
Sruti

Atulya Sir is an excellent teacher who clarifies all doubts of my daughter. We are happy with his teaching abilities.

Skills: Physics

Ajay A s Communication Systems in Kota
(80)
superTutorSuper Tutor
locationImg Talwandi Sector-B, Kota
10 yrs of Exp students 14 students
682 hrs of classes completed
rsIcon 1850 per hour
Author of DOOR TO IIT
Online Classes Online Classes
homeTutions Student's Home
regularClasses Tutor's home
Skills: Mathematics , Physics and more

Top Concept Videos in Physics Communication Systems

Signals Transmitting Information Across Distances video thumbnail

Signals Transmitting Information Across Distances

CBSE - Class 12>Physics>Communication Systems

Provider Image
Prakash Jana
Super TutorSuper Tutor


Worksheet Icon

Free CBSE Worksheets

Get a custom worksheet to practice!

Board

subject

Select a Class

Please select another category

Select Chapter(s)

Chapters & Subtopics

Advanced»

Select type of questions

Select the length of worksheet

Questions (5 to 100)

No of questions have to be between 5 to 100

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more