20 A tank holds a layer of oil, 1.26 m thick, which floats on a layer of syrup that is 0.9 m thick. Both liquids are clear and do not intermix. A ray from the bottom of the tank crosses the oil-syrup interface at a point 0.90 m from the axis. The ray arrives at the oil-air interface, 2.00 m from the axis and at the critical angle. The index of refraction of the syrup is closest to:(A)1.62(B)1.41(C)1.85(D)2.06(E)1.29