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Human ear is sensitive to 20 Hz to 20,000 Hz for sound waves. If these waves are propagating in water calculate the maximum and minimum wavelength. Consider the wave velocity of sound in water is 1500 m/s. GSEB - Class 9 Chapter - 2. Wave Motion and Sound Page 24

Answer» WAVELENGTH:FREQUENCY = VELOCITY / Wavelength20 = 1500/wavelength2/150 = wavelengthwavelength = 0.013 MMAXIMUM Wavelength:Frequency = Velocity / Wavelength20000 = 1500/wavelengthWavelength = 20000/1500Wavelength = 13.33 m


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