Light+Can+be+Refracted

2.) Black Ink written on a white paper is opaque because all the lights falling on the ink is absorbed. White Paper is like a mirror because it reflects all of the light that falls on it.Mirrors can only act as mirrors when their surface are smooth compared to the wavelength of the light striking the surface. If the object has a smooth surface then it will reflect all light uniformly. When the object has rough surfaces then it would appear to reflect the light randomly.