Found 34 Articles for Optics

Introduction The changes in the surface's nature can cause differences in the reflection of light. The rectilinear propagation takes place at the time in which the light travels in a straight line. In this method, no interference is there within the light's traveling route. The course of a light changes as it travels from one medium to another. The medium can be of different components such as air, water, as well as glass. The reflection of light and its nature is dependent on these factors. What is Rectilinear Propagation Reflection of Light? It is proven that light travels in a ... Read More

Introduction Hippolyte Marié-Davy first discovered the instrument, the periscope, for naval purposes during the second half of the nineteenth century. The word periscope has arrived from the association of two words, "peri" and "scope", where peri means "around" and scope means "viewing instrument". However, during the 15th century, it is said that Johannes Gutenberg, has invented the periscope in order to look above people's heads during a parade. Later this technique was applied for better navigation in submarines. Definition of Periscope A periscope is defined as an optical apparatus that basically follows the shape of a tube, and which has ... Read More

Introduction Spherical mirrors are commonly used in daily human lives starting from making automobile headlights to torch. The mirror involves two spherical surfaces, convex and concave in order to form a true shepherd. A spherical mirror is commonly made from the cut-outs of spherical surfaces. This type of mirror has a major function in terms of creating images by following a certain formula of reflection and magnification in real-time. What is Spherical Mirror A spherical mirror can be defined as a mirror that incorporates a hollow sphere while creating its reflecting surface while creating reflections and images. A spherical mirror ... Read More

Introduction The index of refraction or the refractive index of an optical medium is determined as the number that does not have any dimension. This dimensionless number gives an indication of the ability of light bending of that particular medium (optical medium). The phenomena of the refractive index determine how much the light path has bent or got refracted while entering into the optical medium (Luk’yanchuk et al. 2017). The Refractive Index is mainly considered to be the ratio between the light speed in an empty place or vacuum and the speed of light in a specific space. The refractive ... Read More