Please help :) Parts A-D please

Problem 6: A thin layer of oil with index of refraction no = 1.4? is oating above the water. The index of refraction of water is n\". = 1.3. The index of refraction ofaii' is Ha = 1. A light with wavelength 3'. = 325 nm goes in from the air to oil and water. 114 II Part (3) Express the wavelength of the light in the oil. 3.0. in terms of 3'. and \"0- Expression 3.0 = Select from the variables below to write your expression. Note that all variables may not be required. a. [5. 3.. 3.0. 0. a. b. d. g. h. j. k. L. 111. us. no. n\".. P. S. t Part (b) Express the minimum thickness of the film that will result in destructive interference. Imm- in terms 017.0. Expression rmill _ Select from the variables below to write your expression. Note that all variables may not be required. u. I}. 3.. 10. 6, (l. g. I1. j. 111. na. no. n\". P. t Part (c) Express rum in terms of J. and no, Expression rmin : Select from the variables below to write your expression. Note that all variables may not be required. (it. I}. 3.. lo. 6. (l. g. l1. j. 111. Ila, no. n\".. P, t Part ((1) Solve for the numerical value of {min in nrn. Numeric :A numeric value is expected and not an expression. rmin