Question

An under water swimmer sends a sound signal to the surface.It produces 5 beats/second when compared with fundamental tone of a pipe of 20cm length closed at one end.what is wavelength of sound in water.

Answer 1

Answer:

The fundamental frequency of a closed organ pipe is :- fo=4Lv

Here, vair=360m/sec&L=20cm=0.2m

So,

fo=4×0.2360=450Hz

The fundamental frequency of a closed organ pipe is :- fo=4Lv

Here, vair=360m/sec&L=20cm=0.2m

So,

fo=4×0.2360=450Hz