Bats can detect small objects such as insects that are of a size on the order of a wavelength. If bats emit a chirp at a frequency of 60 kHz and the speed of soundwaves in air is 330 m/s, what is the smallest size insect they can detect?

A. 1.5 mm
B. 3.5 mm
C. 5.5 mm
D. 7.5 mm
E. 9.8 mm


Answer: C

Physics & Space Science

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