PH-2248

Wave speed

Physics · Secondary 4 · Easy · Wave speed

A sound wave travels in air at

340\,\text{m s}^{-1}

and has a wavelength of

0.50\,\text{m}

. What is its frequency?

170 $\text{Hz}$
340 $\text{Hz}$
680 $\text{Hz}$
1700 $\text{Hz}$

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