a) Calculate the pressure of water at the bottom of a well if the depth of water is 10m. (g= 9.8 m/s²) (Ans: 98000Pa)​

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