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When two waves of light travel along the same path, the effect produced depends upon whether or not the waves are in phase with one another. If they are in…

Schematic eye:- Schematic eye is a physical or mathematical model that represents the basic optical feature of the real eye.                    Objectives:- To provide a basis for the theoretical studies of…

WHAT IS AN OPTICAL INSTRUMENT? OPTICAL INSTRUMENTIS A DEVICE THAT BASICALLY PROCESSES AND MANAGES LIGHT WAVES TO MAKE THE IMAGE CLEAR AND MAGNIFIED.OPTICAL SYSTEMS USE TRANSPARENT MATERIALS WITH REFRACTIVE INDEX…

Definition: It is the phenomenon where the direction of light is changed when it crosses the boundary between two mediums of different optical density. Or, in other way we can…

LIGHT : Light is electromagnetic radiation that can be detected by the human eye. Electromagnetic radiation occurs over an extremely wide range of wavelengths, from gamma rays with wavelengths less…

Laser is an acronym for light amplification by stimulated emission of radiation. In the most simplified sequence,an energy source excites the atoms in the active medium (a gas,solid or liquid)…

The compound optical system of the eye may be divided into a corneal portion, including the tear layer that separates air from aqueous humour and a lens portion that separates…

Polarization is a concept that includes light, radiation or magnetism that moves in a certain direction.In other words, polarization usually refers to human thinking, especially when two perspectives come out,…

Diffraction is the slight bending of light as it passes around the edge of an object. The amount of bending depends on the relative size of the wavelength of light…