At a point on the surface of water, the superposition of two waves of the same frequency results in a maximum displacement of 1.20cm. Each constituent wave has amplitude 1.00cm.
(i) Determine the phase difference between the two waves at that point.
(ii) The common frequency is 100Hz and the initial phase of the first wave is zero. Write an equation for the resultant displacement as a function of time.
(iii) What is the minimum possible displacement amplitude that can occur at the point for these two waves? State the corresponding phase difference.