For any given wave energy is most related to the of the wave. a crest b wavelength c amplitude

Intensity of wave is defined as

here K = constant

A = amplitude

we can defined intensity by energy per unit area per unit time

So intensity is given by formula

So here we can say if` medium properties like density is uniform as well as frequency of wave will not change then energy of wave depends on intensity and intensity of wave directly depends on amplitude

So answer for the above question is Amplitude

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