PH-2286

Wave speed

Physics · Secondary 4 · Easy · Wave speed

A sound wave in air has a wavelength of

0.80\,\text{m}

and a frequency of

430\,\text{Hz}

.

What is the speed of the sound wave?

$172\,\text{m s}^{-1}$
$215\,\text{m s}^{-1}$
$344\,\text{m s}^{-1}$
$860\,\text{m s}^{-1}$

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