Question
(a) If a submarine’s sonar can measure echo times with a precision of 0.0100 s, what is the smallest difference in distances it can detect? (Assume that the submarine is in the ocean, not in fresh water.)
1. $7.70 \textrm{ m}$
2. Spatial resolution is $7.70 \textrm{ m}$. Shape features of size less than that will not be detected. Object smaller than $7.70 \textrm{ m}$ will not be noticed.
Solution Video