The positions of four successive compressions of a sound wave travelling in air are…

PHYSICS · Subjective · CBSE · Physics · Waves · Waves

Problem

The positions of four successive compressions of a sound wave travelling in air are noted on a metre scale as

0.30\,\text{m}

0.65\,\text{m}

1.00\,\text{m}

and

1.35\,\text{m}

. (i) Determine the wavelength of the wave. (ii) During an experiment

1500

compressions pass a fixed point in

5.0\,\text{s}

. Calculate the frequency of the wave. (iii) Using your answers from parts (i) and (ii), find the speed of this sound wave in air.