Two waves are travelling in same medium. Match equations of two waves given in column A with the corresponding phenomena in column B (all units in MKS system) . Take  ${\tan }^{-1}\left(\frac{3}{4}\right)=37°$.

List-I		List-II
P)	$$\begin{gathered} y_1=6\sin (50\pi t-0.05\pi x+\frac{\pi }{3}) \\ {y}_2=8\sin (50\pi t-0.05\pi x-\frac{\pi }{6}) \end{gathered}$$	1)	Beat frequency is 5 Hz
Q)	$$\begin{gathered} y_1=5\sin (50\pi t-0.05\pi x+\frac{7\pi }{180}) \\ {y}_2=5\sin (50\pi t+0.05\pi x+\frac{7\pi }{180}) \end{gathered}$$	2)	Resultant wave in the medium is  $y=10\sin (50\pi t-0.05\pi x+\frac{7\pi }{180})$
R)	$$\begin{gathered} y_1=7\sin (80\pi t-0.14\pi x) \\ {y}_2=9\cos (70\pi t+0.14\pi x) \end{gathered}$$	3)	All the particles of the medium cross their mean positions at t = 0.005 s
S)	$$\begin{gathered} y_1=4\sin (150\pi t-0.30\pi x) \\ {y}_2=4\cos (150\pi t+0.30\pi x) \end{gathered}$$	4)	There is a node at  $x=+10m$