PH-2261

Wave speed

Physics · Secondary 4 · Easy · Wave speed

A sound wave in air has a frequency of

500\,\text{Hz}

and a wavelength of

0.68\,\text{m}

. What is the speed of the sound wave?

$170\,\text{m s}^{-1}$
$250\,\text{m s}^{-1}$
$340\,\text{m s}^{-1}$
$680\,\text{m s}^{-1}$

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