Principles of Communication: Signal Types MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Signal TypesEasyQuestion 20272

Question

Quantization in PCM introduces a type of error called:

A
White noise
B
Shot noise
C
Quantization noise
Correct
D
Thermal noise

Correct answer

Quantization noise

Explanation

Quantization rounds each sample to the nearest discrete level. The difference between the actual sample and its quantized value is the quantization error (or noise). For n-bit quantization, maximum quantization noise = Δ/2 where Δ = full scale / 2ⁿ.

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