On a distance–displacement graph of a sound wave

PHYSICS · Subjective · A Level · Physics · Waves · Waves

Problem

On a distance–displacement graph of a sound wave, the distance between neighbouring compressions is observed to be

0.68\,\text{m}

. If the frequency of this wave (found from a separate time graph) is

500\,\text{Hz}

, calculate the speed of sound in the medium.