If two objects have the same volume but one is made up smaller and heavier atoms, the one with small atoms will..a) be larger than the otherb) be less dense than the otherc) be more dense than the otherd) float(note: i will also give out why shouldn't i? )

What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 480 ? the index of refraction of the film is 1.34, and there is air on both sides of the film. express your answer in nanometers. hint 1. how to approach th