My Report

Physics – Class 12 Practice Test 10


Correct Answer: 2 points | Wrong: -1 point
Grades: A* (100% score) | A (80%-99%) | B (60%-80%) | C (40%-60%) | D (0%-40%)
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1. What is the maximum distance up to which a TV transmission can be received if the TV tower has a height of 50 m?

2. If the highest modulating frequency of the wave is 10 kHz, what is the number of stations that can be accommodated in a bandwidth of 200 kHz?

3. What is the loss of strength of a signal during its propagation called?

4. A TV signal is allocated with a bandwidth of 6 MHz.

5. Which of the following is not part of the detector system?

6. PAM stands for pulse attenuation modulation.

7. Which of the following converts light energy to electric current?

8. Which of the following is correct about logic gates?

9. Why is AM used for broadcasting in the communication systems?

10. The phase difference between space current and capacitive displacement current is 0 rad, when radio waves undergo the ionosphere.


 

Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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