A seismic P-wave propagates horizontally through a layer of granite at a speed of 6.0km/s. The ground at a monitoring station oscillates with a period of 0.80s as the wave passes. At the edge of the granite layer the wave enters a layer of basalt in which its speed is 8.0km/s. Assume the wave is continuous across the boundary.
(a) Determine the frequency of the P-wave.
(b) Calculate the wavelength of the wave while it travels in granite.
(c) Calculate the wavelength of the wave after it has entered the basalt layer.