Lenses and mirrors

One of the most intriguing ideas in ray optics is the power of a lens. In short, the ability of a lens to bend light is its strength in ray optics. A lens’s ability to refract light passing through it is directly proportional to its power. The converging ability of a convex lens is its […]

Looking Glasses: Without mirrors, life would be very different. Using glasses to see ourselves in the plane mirror is quite helpful. A virtual, erect, and laterally reversed picture is formed. In the image, your left hand will be the right hand. The image is the same size as you, and there is no distortion or

A photodiode is a semiconductor p–n junction device that converts light into electrical current. Photodiodes are commonly used in LEDs. It is the absorption of photons in the photodiode that causes the current to be generated. Photodiodes may be equipped with optical filters or built-in lenses, and their surface areas can range from large to

As already mentioned, optics in physics is a branch dealing with the properties, significance, and behaviour of light in different conditions. Light is an electromagnetic wave. Thus, other electromagnetic waves like X-rays also exhibit similar properties. The study helps develop several optical instruments like cameras, periscopes, microscopes and telescopes. Therefore, we can say that we

Introduction A mirror formula is a way to predict the relationship between three critical points of the mirror – the distance of the object, the distance of the image and the mirror’s focal length. The distance of the object placed is represented by “u”, the distance of the image formed is denoted by “v” and

Mirror equation is an experimental-based quantitative interrelationship between object distance, image distance, and focal length. The fundamental principles of the new Cartesian sign convention are used to understand the positions of the object, image, and mirror better. Concepts related to mirror equations and formulas are applied to spherical mirrors only. This article will help in

Microscopy is the study of using a microscope to examine small objects and structures in greater detail. The term “microscopic” refers to something that is undetectable to the naked eye until examined under a microscope. There are many distinct types of microscopes, and they can be classified in a variety of ways. To describe the

Introduction Microscopes and telescopes are two powerful instruments that have greatly aided our current understanding of the micro-and macrocosm. The development of these gadgets resulted in major breakthroughs in fields like physics, astronomy and biology, to name a few.  Microscopes and telescopes both work by allowing individuals to see items that aren’t visible to the

Introduction A telescope is an optical tool used to make distant things appear closer. It is composed of a series of lenses or reflective surfaces and lenses by which light rays are accumulated and concentrated, and the image obtained is enlarged. Microscopes and telescopes  work similarly. They allow individuals to see objects which are not

Introduction Within a limited range of the electromagnetic spectrum, the retina (inner eye) of the human has been programmed by nature to detect electromagnetic waves. A wavelength ranging from 400 nanometers to 750 nanometers is considered to be visible light of electromagnetic radiation. We learn and interpret the world around us primarily through light and