Lenses and mirrors

Magnification is the process of enlarging something’s apparent size rather than its actual size. The amount of enlargement is expressed as a numerical value called “magnification.” When this number is less than one, it indicates a size reduction, also known as minification or de-magnification. Furthermore, this notion has two variations. The first is through a […]

If you talk to a group of cell biologists about what they enjoy most about their jobs, you could discover that it all boils down to one thing: they’re all secretly microscope geeks. What they truly enjoy is sitting in a small, dark room for hours on end, communing with their preferred cell type through

A lens is a piece of transparent material that is generally round in form and has two polished surfaces, one or both of which is curved and may be convex (bulging) or concave (not bulging) (depressed). Curves are usually always spherical, which means that the radius of curvature is constant. The ability of a lens

Introduction In General ray drawings can be used to determine the location of the image, the size, shape and type of the image built of objects when placed somewhere in front of the lens. Ray drawings provide useful information about image-object relationships, yet fail to provide information in the quantitative form. While a ray diagram

Spherical mirrors have an uniform curve and constant radius of curvature, they provide a virtual or actual picture. It is divided into two varieties based on the surface painting of the spherical mirror: Concave Mirror: Concave mirrors are created when the outer surface of a spherical mirror is painted. Convex Mirror: Convex mirrors are created

The lens is a transparent medium that is bordered by two surfaces, at least one of which must be curved in order for the lens to function. When the distance between the two sides of a lens is exceedingly short, it is said to be thin. When a lens has a positive focal length, it

The focal length of an optical system is the inverse of the system’s optical power; it measures how strongly the system converges or diverges light. A system with a positive focal length converges light, while one with a negative focal length diverges light. A system with a shorter focal length bends the rays more sharply,

There are two types of spherical mirrors—concave and convex. Concave mirrors have an inwardly curved reflecting surface. Concave mirrors are also known as converging mirrors because they collect or converge the rays of light parallel to the principal axis that falls on them to a single focal point. Concave mirrors concentrate light rays and can

The term power of a lens signifies its capacity to bend the light (converge or diverge) that falls on it. A lens of a shorter focal length tends to bend light rays more and has more power. The lens with a longer focal length will have the opposite nature of less bending of light and

A convex mirror, or simply a curved mirror, is a mirror in which a bright spot explodes toward a light source. The surface of the curved mirror can be convex, which means to protrude outward, or curve, to protrude inside. A convex mirror reflects light outside so it is not used to focus on light.