A thin wafer of a solid with a refractive index {21 = 1.15 and thickness t floats on a fluid with refractive index n2 = 1.44. Light with a wavelength A = 569 nm shines directly down onto the wafer. Air t Fluid n2 Figure 1. A thin wafer of thickness rand refractive index :11 is placed on a surface with refractive index in; and air above. Part 1) What is the wavelength of light inside the wafer? 11w = nm Part 2) What is the minimum thickness t, for which constructive interference will occur for the reflected light? Part3) If the wafer is now held in air and illuminated from on top as before, what minimum thickness will lead to constructive interference? Air 151 Air Figure 2. A thin wafer of thickness r and refractive index n1 is now suspended in the air