Basics of Communication — Practice Quiz
Telangana Open School (TOSS) · Class 12 · Physics
Try a 4-question quiz on Basics of Communication for Telangana Open School (TOSS) Class 12 Physics: tap an answer to check it and see why.
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What is the frequency range of audible sound for humans?
Which of the following is NOT a component of a communication system?
What is the main purpose of modulation in communication?
Which of the following is a type of analog modulation?
Sample Questions
Analog signals vary continuously with time.
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True
Analog signals are defined as continuous variations of voltage or current with time.
Digital signals can take only discrete stepwise values.
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True
Digital signals are characterized by discrete, stepwise values, unlike analog signals which are continuous.
What does PCM stand for in digital communication?
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Pulse Code Modulation
PCM stands for Pulse Code Modulation, a digital modulation technique used to convert analog signals into digital form.
The process of converting a modulated signal back to its original form is called:
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Demodulation
Demodulation is the process of extracting the original information-bearing signal from the modulated carrier wave.
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