MCQ on Class 12 Physics Chapter 15 Communication Systems with Answers

We have compiled the MCQ Questions for Class 12 Chemistry Chapter 15 Communication Systems with Answers Pdf free download covering the entire syllabus for JEE/NEET and Boards. Practice MCQ Questions for Class 12 Physics with Answers on a daily basis and score well in exams. Refer to the Communication Systems Class 12 MCQs Quiz Questions with Answers here along with a detailed explanation

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Communication Systems Class 12 MCQs Questions with Answers

MCQ Questions for Class 12 Physics Chapter 15 Communication Systems with Answers

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1. Which of the following is not transducer?

 
 
 
 

2. The space waves which are affected seriously by atmospheric conditions are:

 
 
 
 

3.  
The waves that are bent down by the ionosphere are

 
 
 
 

4.  
What is the function of the receiver?

 
 
 
 

5. Broadcasting antenna are generally:

 
 
 
 

6.  
Which of the following is the reason for signal distortion?

 
 
 
 

7.  
The term used “to collect the information about an object and a place without physical contact” is called :

 
 
 
 

8. In space communication, the sound waves can be sent from one place to another:

 
 
 
 

9. The length of a half wave dipole at 30 mega-hertz is:

 
 
 
 

10. AM is used for broadcasting because:

 
 
 
 

11. The audio frequencies range from:

 
 
 
 

12. In modulation process, radio frequency wave is termed as

 
 
 
 

13.  
The modulation index in amplitude modulation is:

 
 
 
 

14.  
Wave obtained on superimposition of audible frequency e.m. wave is known as

 
 
 
 

15. Increase in frequency deviation results into:

 
 
 
 

16. Which is more advantageous?

 
 
 
 

17. The term used “to collect the information about an object and a place without physical contact” is called :

 
 
 
 

18. Communication channel consists of:

 
 
 
 

19. Name the man who was first to place his foot on the moon and in which year:

 
 
 
 

20.  
The frequency band used in the downlink of satellite communication is

 
 
 
 

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