Question30f10 0.03/1 '5 View Policies Show Attempt History Current Attempt in Progress Sunlight is used in a dou bleslit interference experiment. The fourth-order maximum for a wavelength of 460 nm occurs at an angle of 9 = 90; Thus, it is on the verge of being eliminated from the pattern because 9 cannot exceed 90" in Eq. 35-14. (a) What least wavelength in the visible range (400 nm to 700 nm) are not present in the third-order maxima? To eliminate all of the visible light in the fourth-order maximum, (b) should the slit separation be increased or decreased and (c) what least change in separation is needed