Which one of the following statements) is not correct?
AThe response of the ear to sound of increasing intensity is approximately logarithmic.
BThe sensitivity of the human ear does not vary with the frequency of the sound.
CWhen two or more waves traverse the same medium, the displacement of any element of the medium is the algebraic sum of the displacements due to each wave.
DLongitudinal waves can travel in all media; solids, liquids and gases.