Question

Draw a curve showing density or pressure variations with respect to distance for a disturbance produced by sound. Mark the position of compression and rarefaction on this curve. Also define wavelengths and time period using this curve.

Explain the terms crests and troughs of a wave.

In a longitudinal wave, the time required for a particular point to move from the maximum compression position to the maximum rarefaction position is 0.17 s. What is the frequency of the wave? If in the said wave, distance from one centre of compression to next centre of compression be 60 m, what is the speed of the longitudinal waves?

Calculate the distance between any two successive compression zones in a medium in which a sound wave of frequency 512 Hz is travelling. Given that speed of sound in atmospheric air at room temperature is 348 m s⁻¹.