Jharkhand PSC Prelim Exam 2006 Solved Paper

(2) The colour of an opaque object actually depends on the light waves reflected by that object. That is the object which reflects the most out of the light of the seven colours of the sun is the colour of that object.
Due to the refraction of light,the object appears smaller or bigger or farther or nearer. The object that is most absorbed by the light has no colour i.e black. The one that reflect all colour is white.