At a particular instant the displacement (in metres) of particles in air along the…

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

Problem

At a particular instant the displacement

y

(in metres) of particles in air along the

x

-axis is given by

y = 0.003\sin(40\pi x).

Answer the following: (i) Write the values of amplitude and wavelength represented by this equation. (ii) The speed of sound in air is

340\,\text{m/s}

. Calculate the frequency of the wave. (iii) Find the time period of the wave.