A sound wave has a wavelength of 5.5 m in its travel through air at S.T.P with speed 330m/s. What is the wavelength of sound in the medium? where its speed is 1324 m/s.

1 Answer
May 7, 2018

#lamda=22" "2/3m# or #lamda=22.67m#

Explanation:

Sound's frequency stays the same across mediums. To find it's frequency, we can use
#v=lamdaf# Inputting knowns:
#330m/s=5.5m*f# Solve for #f#:
#f=60Hz#

Knowing this, we can find the wavelength #lamda# in the other medium:
#v=lamdaf# Inputting knowns:
#1324m/s=lamda*60Hz# Solve for #lamda#:
#lamda=22" "2/3m# or #lamda=22.67m# in decimal form.