Sound from a tuning fork of frequency travels in air at and then enters water

PHYSICS · Multi-part · GCSE · Physics · Waves · Waves

Problem

Sound from a tuning fork of frequency

512\,\text{Hz}

travels in air at

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

and then enters water, where its wavelength becomes

1.48\,\text{m}

. (a) Calculate the wavelength of the sound in air. (b) Find the speed of sound in water. (c) Determine the time period of the sound wave in water.