Physics

Problem

A displacement–position graph taken at an instant shows that the distance between two consecutive compressions of a sound wave is

0.68\,\text{m}

. The corresponding displacement–time graph for a particle of the same wave gives a period of

1.7\,\text{ms}

. The speed of the wave is a)

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

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

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

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