Physics - SHM Question with Solution | TestHub

$Y=E_c(1+K\sin {\omega }_{2}t)\sin {\omega }_{1}t$

$Y=E_c\sin {\omega }_{2}t+E_c k\sin {\omega }_2\sin {\omega }_{1}t$

$Y=E_c\sin {\omega }_{1}t+\frac{E_{c}K}{2}\cos \left({\omega }_2+{\omega }_1\right)t\frac{E_{c}K}{2}\left({\omega }_2-{\omega }_1\right)t$
Thus there are three simple harmonic waves of frequency${\omega }_1, \left({\omega }_1+{\omega }_2\right)$and$\left({\omega }_1-{\omega }_2\right)$