<p>This topic comprises of the explanation in the following areas:</p> <p>a. Concave and Convex Lens<br /> b. Terminology in addressing light ray diagrams - principal axis, principal focus, radius of curvature, focal length, etc.<br /> c. I then compare a Real and a Virtual Image<br /> d. The basic rules to be addressed in drawing a ray diagram<br /> e. The position of the object, the position of the image, the nature of the image and its geometric drawings are also provided in the video presentation and explanation<br /> f. Cartesian Sign Convention<br /> g. Equations of lenses, magnification, power of lens, etc.</p> <p>The PDF notes address the principles associated with refraction of light such as the laws of refraction, refractive index, dispersion of light, the light spectrum, etc.</p>

<p>The content in this topic is only for the purpose of information and learning.</p> <p>In this topic I cover the history and development of the Periodic Table from</p> <p>a. Doberiner<br /> b. Newland<br /> c. Lother Meyer<br /> d. Mendeleev<br /> e. Moseley - the Modern Periodic Table</p> <p>I do not cover the trends or key points for the modern periodic table. It is solely informative to the history of the periodic table.</p>