PH-2278

Wave speed

Physics · Secondary 4 · Easy · Wave speed

A sound wave in air has a speed of

340\,\text{m/s}

and a wavelength of

0.85\,\text{m}

. What is its frequency?

$400\,\text{Hz}$
$289\,\text{Hz}$
$0.0025\,\text{Hz}$
$340\,\text{Hz}$

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