A sound wave has a frequency of 1640 Hz. The air temperature is 46 degress F.
What is the speed?
v =
What is the wavelenght of the sound?
lambda =
F = (9/5)C + 32 = 46o
1.8C = 46-32 = 14
C = 7.78o
V=0.6T + 331 = 0.6*7.78 + 331=335.7 m/s.
L = V*(1/F) = V/F = 335.7/1640=0.2047 m.