Physics

Problem

Three sound waves travel through air at the same speed and have equal amplitudes. • Wave X: wavelength = 2.0 m • Wave Y: wavelength = 1.5 m • Wave Z: wavelength = 1.0 m Which of the following correctly ranks the waves from greatest to least in both perceived pitch and energy transported? a)

Z > Y > X

for pitch; all three have equal energy b)

Z > Y > X

for both pitch and energy c)

X > Y > Z

for pitch;

Z > Y > X

for energy d)

Z > Y > X

for pitch;

X > Y > Z

for energy

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