We now have two expressions for the velocity of sound:
v = f and v = 20.1
f = 20.1 and = ( in metres)
Example. What is the wavelength of concert A (440Hz) at 20 deg. C?
Calculate what it is at 21 deg.C ( = 0.783m)
Here are some examples of wavelengths at 21 deg. C (294 deg. K):
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