Dolphins of the open ocean are classied as Type II
Chapter 14, Problem 27(choose chapter or problem)
Dolphins of the open ocean are classied as Type II Odontocetes (toothed whales). These animals use ultrasonic clicks with a frequency of about 55 kHz to navigate and nd prey. (a)Suppose a dolphin sends out a series of clicks that are reected back from the bottom of the ocean 75 m below. How much time elapses before the dolphin hears the echoes of the clicks? (The speed of sound in seawater is approximately 1530 m/s.) (b) What is the wavelength of 55-kHz sound in the ocean?
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