Question

the wave lenght of a sound wave whose frequency is 220 HZ and speed is 660 m/sec in a given medium is​

Answer 1

$\color{darkblue}\underline{\underline{Given-}}$

• Speed of sound wave (v) = 660m/s
• Frequency of sound wave (f) = 220Hz

$\color{darkblue}\underline{\underline{To\: Find-}}$

• Wavelength of sound wave $(\lambda)$

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$\color{teal}\bullet\boxed{\sf v=\lambda × f}$

$\implies{\sf 660=\lambda×220 }$

$\implies{\sf \lambda =\dfrac{660}{220}}$

$\color{red}\implies{\sf Wavelength (\lambda) = 3m}$

$\color{darkblue}\underline{\underline{Answer-}}$

Wavelength of sound wave is $\color{red}{\sf 3m}$ .

Answer 2

$\mathtt{ \huge{ \fbox{Solution :)}}}$

Given ,

Frequency of sound wave = 220 hz

Speed of sound wave = 660 m/s

We know that , wavelength (λ) is equal to the velocity of the wave divided by the frequency i.e

$\large \mathtt{ \fbox{Wavelength \: (λ) = \frac{v}{f} }}$

Thus ,

λ = 660/220

λ = 3 m

Hence , wavelength of the sound wave is 3 m

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