Two coherent wave sources 5 cm apart make ripples in a watertank, producing a Moire pattern. The wavelength of the waves is 3cm. 1) Find the angle between the perpendicular bisector of theline joining the two sources and the direction of the 1stnon-central maximum. 2) What is the direction of this 1st maximumif the two sources operate with opposite phases?. 3) How do theanswers to 1) and 2) change if the wavelength is changed to 6cm?