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Physics

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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 -

    wavelength=speedsound/freuency

  • Physics -

    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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