TS EAMCET · Physics · Communication System
A message signal is used to modulated a carrier signal of frequency \(5 \mathrm{MHz}\) and peak voltage of \(40 \mathrm{~V}\). In the process, two side-bands are produced seperated by \(40 \mathrm{kHz}\). If the modulation index is 0.75 , then the peak voltage and frequency of the messages signal, respectively are
- A \(60 \mathrm{~V} ; 10 \mathrm{kHz}\)
- B \(60 \mathrm{~V} ; 20 \mathrm{kHz}\)
- C \(30 \mathrm{~V} ; 10 \mathrm{kHz}\)
- D \(30 \mathrm{~V} ; 20 \mathrm{kHz}\)
Answer & Solution
Correct Answer
(D) \(30 \mathrm{~V} ; 20 \mathrm{kHz}\)
Step-by-step Solution
Detailed explanation
Given, frequency of carrier signal, \(f=5 \mathrm{MHz}\) and peak voltage, \(V_c=40 \mathrm{~V}\) Modulation index, \(\mu=0.75\)…
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