Represent graphically by two separate diagrams in each case:
$(i)$ Two sound waves having the same amplitude but different frequencies.
$(ii)$ Two sound waves having the same frequency but different amplitudes.
$(iii)$ Two sound waves having different amplitudes and also different wavelengths.

(N/A) The graphical representation of sound waves involves plotting amplitude on the $y$-axis against time on the $x$-axis.
$(i)$ For two sound waves with the same amplitude but different frequencies,the height of the peaks (amplitude) remains constant for both waves,but the number of oscillations per unit time (frequency) differs.
$(ii)$ For two sound waves with the same frequency but different amplitudes,the number of oscillations per unit time is identical,but the maximum displacement from the mean position (amplitude) varies.
$(iii)$ For two sound waves with different amplitudes and different wavelengths,both the height of the peaks and the distance between consecutive crests (wavelength) differ between the two waves.