Chapter 16.9, Problem 20CYU

(a)

To determine

To find: Whether the ratio $\left(\frac{f_{\text{o}}}{f_{\text{s}}}\right)$ is greater in air or in the underwater when the source approaches the observer.

(b)

To determine

To find: Whether the ratio $\left(\frac{f_{\text{o}}}{f_{\text{s}}}\right)$ is greater in air or in the underwater when the source moves away from the observer.