University of Toronto

PHYA 21

Reading Material: Chapter 16 (16.1, 16.2, 16.5, 16.7) 1. The figure shows the snapshot of a sinusoidal traveling wave. Assume the speed of the wave is 15 cm/s. (a) Find the amplitude, period, frequency, angular frequency, wavelength, and wave number of this wave. (b) Write the equation of this wave ξ (x, t), if the figure represents the wave at t = 0. (c) Redraw the graph of the wave if its amplitude is halved and its wavelength is doubled. Write the wave equation. (d) Redraw the graph of the wave if its speed is doubled and its frequency is quadrupled. Write the wave equation.