To calculate the frequency of a sound wave, you can use the formula:
v = fλ
where:
- v represents the speed of sound in air,
- f denotes the frequency of the sound wave, and
- λ (lambda) represents the wavelength of the sound wave.
The speed of sound in air varies with temperature. At 20°C (or 293.15 Kelvin), the approximate speed of sound in dry air is around 343 meters per second.
Given the wavelength of the sound wave as 95 cm (or 0.95 meters), we can rearrange the formula to solve for the frequency:
f = v / λ
Plugging in the values:
f = 343 m/s / 0.95 m ≈ 360.53 Hz
Therefore, a sound wave with a wavelength of 95 cm at 20°C would have a frequency of approximately 360.53 Hz.