Question

A longitudinal wave travels at a speed of 0.3 m/s and the frequency of the wave is 20 hz .Find the separation between the two consecutive compressions

Answer 1

Speed = V = 0.3 m/s

Frequency = n = 20Hz

Wave Length = ?

speed = frequency× wave length

⇒V = n × wave length

⇒V/n = wave length

⇒0.3/20 = wave length

⇒3/10/20 = wave length

⇒3/10×1/20 = wave length

⇒0.015 metre = wave length

⇒so the separation between the two consecutive compression

= wave length = 0.015 metre

Hope uh get it :)