A high-frequency sound therefore has a shorter wavelength than a low-frequency sound. Wave velocity (m/s) =Wavelength (m) * Frequency (Hz) Example calculation. This tool lets you calculate the wavelength of a given frequency or the frequency of a given wavelength. This calculator will tell you the wavelength of any airborne audio frequency in inches, feet and metres, based on the speed of sound at sea level, and at 20 degrees Celsius or 72 degrees Farenheit. Formula to calculate wavelength. The speed of sound in air is 340 m s-1. Notice amount of wavelength present increases by half each time. Letâs take for instance the case of a wave with a frequency of 56 Hz going through a material at a speed of 168 m/s. I think the answer is 971.42m but I am not to sure, I arrived at that answer by (Speed of sound / Frequency). Moreover, we represent the wavelength of the wave by Greek letter lambda ($$\lambda$$). The wavelength result is 3 m. Most common velocities: Light in vacuum (air) = 300,000 km/s. Light in water = 225,000 km/s. sound pressure level, decibels (db) P = sound wave pressure, newtons/meter 2: P ref = reference pressure or hearing threshold, newton/meter 2: IL = intensity level, decibel (db) I = sound intensity, watt: I 0 = reference intensity or least audible sound level, watts: P AV = average power, watt: NPL = noise pollution level, decibel (db) Corresponding values are calculated while typing. If the graph shows at the x axis the time t, we see the period T = 1 / f. If the graph shows at the x axis the distance d, we see the wavelength Î». Î½ = speed of sound in air (room temperature)~ 330-340 m/s Î» = wavelength (4 Xâs the length of the tube measured in meters) 10cm = .10 m f = frequency in Hertz The velocity of a sound wave (v) is equal to its frequency (f) Lmes its wavelength. Calculate the speed of sound on a day when a 1500 Hz frequency has a wavelength of 0.221 m. (a) What is the speed of sound in a medium where a 100-kHz frequency produces a 5.96-cm wavelength? Method 2 If you know the frequency and wave speed of the progressive waves that made the standing wave you can use the following equation: lambda=c/f a) Calculate the wavelength of this sound. In simple words, the wavelength is the distance between the crests of the wave. A steel-pan produces a sound of frequency 0.350 KHz. y = sound pressure p (sound pressure amplitude). Consider an 80-cm long guitar string that has a fundamental frequency (1st harmonic) of 400 Hz. Also, many diverse things move in similar waves, like the water, strings, air (sound waves), the earth or ground, and light also can be treated as a wave. (b) Which substance in Table 1 is this likely to be? The amplitude a (strength of the wave or loudness) has nothing to do with the period, the frequency, and the wavelength. The SI unit of wavelength is meters (m) .. Wavelength. What frequency sound has a 0.10-m wavelength when the speed of sound is 340 m/s? The speed of sound in seawater is the same for all frequencies. or Frequency = velocity divided by wavelength f â¦ Determining the Harmonic Frequencies. You can also calculate how long it takes sound to travel a given distance or how far sound will travel within a given time span. The sound wave produced by striking middle C on a piano has a frequency of 256 Hz. Sound in air = 340 m/s For closed pipes Harmonic, Wavelength in terms of L 1, lambda//4 2, 3lambda//4 3, 5lambda//4 4, 7lambda//4 Etc. Wavelength can be defined as the distance between two successive crests or troughs of a wave. The largest deflection or elongation is referred to as amplitude a. b) Calculate the wavelength for the sound produced by High C, one octave higher than middle C with a frequency of 512 Hz. 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