Physics

Problem

A photograph of a stretched string shows that the distance between the first and the seventh crest is

1.2\,\text{m}

. If the wave on the string moves with a speed of

16\,\text{m/s}

, calculate its frequency. a)

160\,\text{Hz}

80\,\text{Hz}

40\,\text{Hz}

67\,\text{Hz}