TS EAMCET · Physics · Communication System
A message signal of frequency \(10 \mathrm{kHz}\) and peak voltage of \(15 \mathrm{~V}\) is used to modulate a carrier frequency of \(1 \mathrm{MHz}\) and peak voltage of \(30 \mathrm{~V}\). Determine the modulation index.
- A 0.5
- B 0.6
- C 0.7
- D 0.8
Answer & Solution
Correct Answer
(A) 0.5
Step-by-step Solution
Detailed explanation
Modulation index, \(\mu=\frac{\text { Amplitude of message signal }}{\text { Amplitude of carrier wave }}=\frac{15 \mathrm{~V}}{30 \mathrm{~V}}=0.5\)
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