AP EAMCET · PHYSICS · Communication System
If the maximum and minimum amplitudes of a modulated wave are 25 V and 5 V respectively, then the modulation index is
- A \(\frac{1}{5}\)
- B \(\frac{1}{3}\)
- C \(\frac{3}{2}\)
- D \(\frac{2}{3}\)
Answer & Solution
Correct Answer
(D) \(\frac{2}{3}\)
Step-by-step Solution
Detailed explanation
\(\mu = \frac{A_{max} - A_{min}}{A_{max} + A_{min}} = \frac{25 - 5}{25 + 5} = \frac{20}{30} = \frac{2}{3}\)
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