Basics of Communication — Important Questions
Telangana Open School (TOSS) · Class 12 · Physics
44 important questions from Basics of Communication for Telangana Open School (TOSS) Class 12 Physics, with answers. Written for the board exams 2027.
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Important Questions from Basics of Communication
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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