You add bubble bath to a full tub and notice the surface of the water (where a thin film sits) reflects a different colour than the bubbles reflect. (nwater=1.33, nair=1, nbubblebath=1.2). The thickness of bubbles and the film are both 500 nm. a. What colour of light is reflected from the tub? [2 marks] b. What colour of light is reflected from the bubbles? [2 marks] c. What colour undergoes refracted destructive interference in the bubbles? [2 marks]