Physics

Problem

Two sound waves travel through air at

340\,\text{m/s}

. Wave X has a period of

0.80\,\text{ms}

, and wave Y has a frequency of

1.2\,\text{kHz}

. Which statement correctly compares their wavelengths? a) Wave X’s wavelength is about 4\% longer than that of wave Y. b) Wave Y’s wavelength is about 4\% shorter than that of wave X. c) Wave Y’s wavelength is about 4\% longer than that of wave X. d) The two waves have identical wavelengths because they move at the same speed.

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