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.