Question

Consider the Pressure vs Time graphs for two longitudinal waves A and B. What can you conclude about the amplitude and frequency of both the waves.
(Assume that the graphs are drawn to the same scale.)

Answer 1

From the given pressure vs time graphs we can conclude that both the waves have the same amplitude, i.e., 4 units on pressure axis.

Wave A completes one oscillation in the same time as taken for wave B to complete two oscillations, i.e., 8 units on time axis. Thus, the frequency of B is higher than that of wave A.