A sound wave in air has a frequency of 420.0 Hz.
(a) What is its wavelength? m(b) If the frequency of the sound is increased, does its wavelength increase, decrease, or stay the same?stays the same decreases increasesExplain. This answer has not been graded yet.(c) Calculate the wavelength for a sound wave with a frequency of 450.0 Hz. m
This answer has not been graded yet.
The speed of sound in the air is 343 m/s, V = f*lambda
lambda = 343/f = 343/420 = 0.817 m
wavelength decrease becasue its speed does not change
lambda = 343/450 = 0.762 m
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