හවුල් ශ්‍රව්‍ය

In this section of the study material, the focus is on Optics, specifically the nature and behavior of light.Core Concepts of LightDefinition: Light is a form of energy that enables sight and is scientifically classified as electromagnetic radiation.Historical Evolution: Our understanding shifted from Newton’s Corpuscular Theory (light as particles) to Wave Theory (light as waves) , and finally to Quantum Theory, which proves light has a dual nature (acting as both waves and particles called pho