In the previous lessons, you understood that light ' i originates from the accelerated motion of electrons. It is an BEG\"! electromagnetic phenomenon and only a tiny part of a larger \"mm whole wide range of electromagnetic waves called the electromagnetic spectrum. Today, you will know about the two forms of a light - a particle and a wave and will understand how these two forms explained the propagation, reflection, and refraction of light. Moreover, you will be given activities to enhance your understanding towards the relationship of energy of the photon and photon frequency. In this module, you will investigate about light as a wave and a particle. This module contains two lessons. Lesson 1 - Nature and Propagation of Light Lesson 2 - Photons M08 33%\" COMPETENCY 0-00.... 1. Describe how the propagation of light, reflection, and refraction are explained by the wave model and particle model of light. ($11l12PS-lVf-59)