**Question:**

If a carrier wave $c(t)=A \sin \omega_{c} t$ is amplitude modulated by a modulator signal $\mathrm{m}(\mathrm{t})=\mathrm{A} \sin \omega_{\mathrm{m}} \mathrm{t}$ then the equation of modulated signal $\left[\mathrm{C}_{\mathrm{m}}(\mathrm{t})\right]$ and its modulation index are respectively

Correct Option: 3

JEE Main Previous Year Online April 9, 2013

**Solution:**