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A sound wave travels at a speed of 340 m/s. If the wave length of wave is 1.4 Km. What is the frequency of the wave?

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The relationship between the speed of sound, its frequency, and wavelength is: v=fλ, where v is the speed of sound (in units of m/s), f is its frequency (in units of hertz), and λ is its wavelength (in units of meters). Therefore, f=v/λ =340/(1.4x1000) ...
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The relationship between the speed of sound, its frequency, and wavelength is:

v=fλ,

where v is the speed of sound (in units of m/s), is its frequency (in units of hertz), and λ is its wavelength (in units of meters).

Therefore, f=v/λ

                 =340/(1.4x1000)

                 =0.2428 s−1

Hence, frequency of the wave is 0.2428 hertz.

 

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