Question

Match List-I with List-II (Modulation vs Disadvantages).

• A. A-I, B-II, C-III, D-IV
• B. A-I, B-II, C-IV, D-III
• C. A-IV, B-III, C-I, D-II
• D. A-IV, B-III, C-II, D-I

Hint:

PCM → Quantization noise, Delta → Granular noise, FM → Threshold effect.

Answer 1

The Correct Option is D

Concept: Different modulation techniques have specific drawbacks:

Step 1: FM FM suffers from threshold effect. \[ A \rightarrow IV \]

Step 2: PCM PCM suffers from quantization noise. \[ B \rightarrow III \]

Step 3: Delta modulation Delta modulation suffers from granular noise. \[ C \rightarrow II \]

Step 4: Superheterodyne receiver It suffers from image frequency interference. \[ D \rightarrow I \] \[ \therefore \text{Correct answer is (D)} \]