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JEE Main 2022 · 25 Jul · Shift 2, Physics question 31

In AM modulation, a signal is modulated on a carrier wave such that maximum and minimum amplitudes are found to be 6 V and 2 V respectively. The modulation index is :

Choose one option
Answer and worked solution

Official answer: D

Index 6−26+2=0.5\dfrac{6-2}{6+2}=0.5, i.e. 50%.

(D)

Topics:Modulation
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