Physics

General objective of this lecture is to present on Real Images vs. Virtual Images. Real images are formed by mirrors or lenses when light rays actually converge…

Supernumerary arcs are faint arcs of color just inside the primary rainbow. They occur when the drops are of uniform size. If two light rays…

A rainbow is a spectrum formed when sunlight is dispersed by water droplets in the atmosphere. Sunlight incident on a water droplet is refracted. Because…

General purpose of this lecture is to present on Atmospheric Optics. There are many natural occurrences of light optics in our atmosphere. One of the most common…

Most things we see are thanks to reflections, since most objects don’t produce their own visible light. Much of the light incident on an object…

Dispersion is the separation of light into a spectrum by refraction. The index of refraction is actually a function of wavelength. For longer wavelengths the…

Lingering daylight after the sun is below the horizon is another effect of refraction. Light travels at a slightly slower speed in Earth’s atmosphere than…

Primary objective of this lecture is to present on Mirages. Mirages are caused by the refracting properties of a non-uniform atmosphere. It is an optical illusion caused by…

Fiber optic lines are strands of glass or transparent fibers that allows the transmission of light and digital information over long distances. They are used…

Principle objective of this lecture is to present on Snell’s Law. Snell’s law states that a ray of light bends in such a way that the ratio…

Major objective of this lecture is to present on Speed of Light and Refraction. At an interface between two media, both reflection and refraction can occur. The…

Prime objective of this lecture is to present on Light: Holograms and Spectroscopy. A hologram the size of a sugar cube could hold enough information for about…