Bats can detect small objects such as insects that are of asize on the order of

Question

Bats can detect small objects such as insects that are of asize on the order of a wavelength. If bats emit a chirp at afrequency of 50 kHz and the speed of soundwaves in air is 330 m/s,what is the smallest size insect they can detect? A.) 3.3 mm B.) 7.7 mm C.) 3.4 mm D.) 4.4 mm E.) 6.6 mm Bats can detect small objects such as insects that are of asize on the order of a wavelength. If bats emit a chirp at afrequency of 50 kHz and the speed of soundwaves in air is 330 m/s,what is the smallest size insect they can detect? A.) 3.3 mm B.) 7.7 mm C.) 3.4 mm D.) 4.4 mm E.) 6.6 mm

Explanation / Answer

    Frequency, f = 50000 Hz     Velocity of sound waves in air, V = 330 m/s     Wavelength, = V / f                           = 330 / 50000                           = 6.6 mm     Smallest size insect they can detect = =6.6 mm

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