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Physics, 21.04.2020 22:02 belmontes

A bat can detect small objects such as an insect whose size is approximately equal to the wavelength of the sound the bat makes. What is the smallest insect a bat can detect? Assume that bats emit a chirp at a frequency of 47.6 kHz, and that the speed of sound in air is 413 m/s. Answer in units of mm.

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