[tex]\huge \fbox \red{❥ Question}[/tex]
Calculate the wavelength of a sound wave whose frequency is 220 Hz and speed is 440 m/s in a given medium.
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Solution: Frequency of the sound wave, ν= 220 Hz
Speed of the sound wave, v = 440 m s-1
For a sound wave,
Speed = Wavelength x Frequencyv = λ x ν
ˆ´ λ= v / ν = 440 / 220 = 2m
Hence, the wavelength of the sound wave is 2 m.
Answer:
we use the formula
v=f ¥
¥(wavelength)=v/f
=440/220
=2lemda.
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