Homework Help: Physics

Posted by rory on Wednesday, November 21, 2012 at 11:48am.

Bats can detect small insects that are about equal in size to the wavelength of the sound the bat makes with its echolocation system. A bat emits chirps at a frequency of 17.7kHz. Using the speed of sound as 340m/s, what is the smallest insect the bat can detect?

Physics - bobpursley, Wednesday, November 21, 2012 at 12:20pm
wavelength=speedsound/freuency
Physics - Oi, Monday, November 26, 2012 at 7:11pm
wavelength = v/f v is the wave speed
f is the frequency
1 kHz = 1000 Hz

340/(17.7*1000)
= 0.0192m

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