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Question 7 Consider a double slit device, as shown in the figure below (Figure 1). A monochromatic light of wavelength ) is reflected from a mirror and then incident on the double slit device as shown in Figure 1. The width of each slit is much smaller than the wavelength. Not yet answered 2 Marked out of 1.00 Flag question 0 d 2' mirror 2" Figure 1. Light is incident on a mirror. The light is reflected at an angle y and then passes through double slits separated by a distance d. After passing through the slits, it makes an angle 0 with the normal. Part 1) Derive an expression for the phase difference between the ray 1' and the ray 2' at positions of the corresponding slits. Present an algebraic formula in terms of d, > ("lambda"), and y ("gamma"). Give your answer in radians. Ay = radians Part 2) The central interference maximum corresponds to zero phase difference between the ray 1" and the ray 2". Find the angle 0 corresponding to the central maximum. Present an algebraic formula and give your answer in radians. Note, 00 # 0. 80 = radians Part 3) Two interference minima adjacent to the central maximum pond to the phase dif tween the ray 1" and the ray 2". Find the angles 0+ corresponding to these minima. Present algebraic formulas and give your answers in radians. Note, 0+ # 0 radians radians