AP EAMCET · PHYSICS · Communication System
For an amplitude modulated wave, the maximum and minimum amplitudes are \(12 \mathrm{~V}\) and \(3 \mathrm{~V}\) respectively. Then the modulation index is
- A 0.4
- B 0.9
- C 0.6
- D 0.3
Answer & Solution
Correct Answer
(C) 0.6
Step-by-step Solution
Detailed explanation
Given, \(\mathrm{V}_{\max }=12 \mathrm{~V}\) and \(\mathrm{V}_{\min }=3 \mathrm{v}\) modulation index, \(\mu=\frac{V_{\max }-V_{\min }}{V_{\max }+V_{\min }}\) \(=\frac{12-3}{12+3}=\frac{9}{15}=0.6\)
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