Calculate the wavelength of a sound wave whose frequency is 220 Hz and speed is 440 m/s in a given medium.
ScienceClass 9CBSEAnswered 27 Mar 2026
Answer
Given that,
Frequency of sound wave = 220 Hz
Speed of sound wave = 440 m/s
Calculate wavelength.
We know that
Speed = Wavelength × Frequency
v = λ ν
440 = Wavelength × 220
Wavelength = 440/220
Wavelength = 2
Therefore, the wavelength of the sound wave = 2 metres
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