Question

The speed of a sound wave is $340m{s}^{-1}$. What is the wavelength of the wave if its frequency is $500Hz$ ?

• A. $0.68m$
• B. $6.8m$
• C. $68m$
• D. $0.068m$

Answer 1

Answer: (A)

$0.68m$

Given: Speed of the sound wave $=340m{s}^{-1}$

Frequency $=500Hz$

We have the equation,

$\text{Wavelength}=\frac{\text{Speed of the wave}}{\text{Frequency}}$

Substituting the values we get,

$\text{Wavelength}=\frac{340}{500}=0.68m$

Hence the wavelength of the sound wave is $0.68m$.