1.

A bat can hear sound at frequencies up to 120KHz. Determine the wavelensound in air at this frequency.(Take speed of sound in air as 344m/s.)

Answer»

Speed, wavelength, and frequency of a sound wave are related by the following equation:

Speed = wavelength * frequencyWavelength = speed / frequencyWavelength = 344/120000 = 28.7 * 10 ^-4 m



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