Index.of. Jpg Beauty Which Of The Following Statements Correctly Describes Rays 1 And 2 And Their Path Difference?

Which of the following statements correctly describes rays 1 and 2 and their path difference? - index.of. jpg beauty

Drawing (Intro 1 figure) shows a thin film of soap water of uniform thickness and refractive index n = 1.33 float in the air. Consider the rays 1 and 2, leaving the movie: Ray 1 is the reflected wave in the air, film, and Figure 2 shows the blast wave is reflected in the lower surface of the film.
http://session.masteringphysics.com/problemAsset/1020409/16/1020409.jpg
Which of the following statements correctly describe the rays 1 and 2 and their different ways?
A) Ray 1 undergoes a phase change of the average cycle. Ray 2 does not undergo phase change --
B) 1 a.m.-2 p.m. The two beams pass through a phase change of the cycle.
C) Ray 2 is subject to a phase change of the average cycle. Ray 1 is subject to change at any stage.
D) The path difference between rays 1 p.m. to 2 a.m., it is intended t.
E) There is no path difference between the two beams.
E) The road is difference between rays 1 a.m.-2 p.m. 2t.