Consider a system of three connected strings, S₁, S₂ and S₃ with uniform linear mass densities μ kg/m, 4μ kg/m and 16μ kg/m, respectively, as shown in the figure. S₁ and S₂ are connected at the point P, whereas S₂ and S₃ are connected at the point Q, and the other end of S₃ is connected to a wall. A wave generator O is connected to the free end of S₁. The wave from the generator is represented by y = y₀ cos(ωt − kx) cm, where y₀, ω and k are constants of appropriate dimensions. Which of the following statements is/are correct: