Monochromatic light of wavelength \(\lambda\) in air (\(n_{\text{air}} = 1.00\)) is incident nearly perpendicular to a thin uniform oil film (\(n_{\text{oil}} = 1.45\)) of thickness \(t\). In Setup 1, the oil film floats on water (\(n_{\text{water}} = 1.33\)), whereas in Setup 2, an identical oil film rests on a glass plate (\(n_{\text{glass}} = 1.55\)). Which of the following correctly compares the minimum non-zero film thickness \(t_{\text{min}}\) required for constructive interference in reflection for both setups and states the net phase difference between the two reflected rays due to boundary reflections alone in Setup 2?