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Question: wave optics chapter 17 175 174 thinfilm interference oure shows...

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Wave Optics CHAPTER 17 17-5 17.4 Thin-Film Interference oure shows a wave transmitted from air through a thin oil film on water. The film has a kness t oil/2, where Noil is the wavelength of the light while in the oil. 2. The fi nicna n1 1.00 n2 1403 1.33 a. Referring to the indices of refraction shown on the figure, indicate at each boundary with a Y (yes) or N (no) whether the reflected wave undergoes a phase change at the boundary. b. Draw in the reflected wave from the first boundary (air/oil) and the reflected wave from the second boundary (oil/water). Extend both reflected waves back to the left edge of the figure. Hint: If theres no phase change, the reflected wave retraces the incoming wave. With a phase change, the reflected wave is upside down relative to the incoming wave. c. Do the two reflected waves interfere constructively, destructively, or in between? Explain.

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