A STUDY SOME OPTICAL PROPERTIES OF COMPOSITE MATERIAL (GYPSUM - GRAPHITE)

Abstract

This studies concern about optical properties of composite material, In the first, powder of material was taken as grams and projecting light from a distance and change the grams with changing of the distance of the projecting light for many times and thus got results by assistant of photocell and multimeter  to calculate  change of the voltage. Then find different changed of light properties like absorption, transmission and reflection on the bases of available results.