LESSON 2: WAVE PROPERTIES OF LIGHT The following are some of the wave properties of light. Dispersion is the separation of white light into a spectrum of colors by the process of refraction. In this process, when white light passes from air into a glass prism, it splits into rainbow colors, ROYGBIV. Among these colors, violet bends the most, and red bends the least. Scattering is the process where light rays deviate from its path due to non- uniformities in the medium through which they pass. These non-uniformities include dust particles, gas molecules, droplets, etc. Interference is a phenomenon that occurs when two light waves meet while traveling along with the same medium. Superposition principle is the basic principle used in the interference of light. Incoming light waves can either superimpose constructively or destructively. If they combine constructively, the intensity increases while when they add destructively, it decreases. Types of Interference: A. Constructive Interference - occurs at any location along with the medium where the two interfering waves have a displacement in the same direction. For example, the crest of one wave meets the crest of a second wave, they will interfere in such a manner as to produce a "super-crest." Similarly, interference of a trough and a trough produces a "super-trough". In this case, the intensity of the wave increases. В. Destructive Interference - displacements. For example, a crest meets with a trough. Destructive interference often decreases the resulting displacement of a wave. occurs when two interfering waves are with opposite Diffraction is a process in which a light ray travels through an obstacle or around a barrier and it spreads out as a result. For example, sending light rays through a slit wll Spread it out that makes a wider stream of light. The smaller the slit, the greater the diffraction effect. Diffraction also produces interference patterns. Kay điagrams are valuable tools in determining the movement of the incident and dinted rays taken by light. In this activity, determine the property of light illustrated in each diagram. Choose from the following A. dispersion B. scattering C. interference D. diffraction light source light source light source 2. light source prism 4.