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Optics

Difference between interference and diffraction of light

Interference of light The modification in the distribution of light energy due to superposition of two or more waves is called interference of light. Conditions for interference Light source should be monochromatic. Light source should be coherent mean they should not be independent but should be subsidiary source and derived from a single source. The light source should be narrow ...

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newton’s ring experiment with animation

Newton’s ring is a process in which Circular bright and dark fringes obtained due to air film enclosed between a Plano convex lens and a glass plate.An air wedge film can be formed by placing a Plano-convex lens on a flat glass plate.The thickness of film is zero where the lens and the plate are in contact with each other.The ...

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Interference definition with types and conditions

Interference definition Interference of light is defined as:”When two or more light waves having same frequency,same wavelength and same amplitude meet together in a medium at a point,they cancel or enhance the effect of each other at that point.This phenomenon is called interference of light waves.” There are two types of interference of light. Constructive interference Destructive interference Constructive interference ...

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Diffraction of light:definition,types and examples in physics

Diffraction of light definition “The bending of light waves around the corners of an opening or obstacle and spreading of light waves into geometrical shadow is called diffraction.”Diffraction effect depends upon the size of obstacle.Diffraction of light takes place if the size of obstacle is comparable to the wavelength of light.Light waves are very small in wavelength,i.e,from 4×10-7 m to 7 × ...

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types of optical fiber

Optical fibers are thread like structure made of glass and plastic in which light travel by total internal reflection. Who invented optical fibers? For hundreds of years man has communicated using flashes of reflected Sunlight by day and lanterns by night.Navy signalmen still use powerful blinker lights to transmit coded massages to other ships during periods of radio-silence. Light communication ...

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uses of spherical mirrors (study)

A mirror whose polished, reflecting surface is a part of a hollow sphere of glass or plastic is called a spherical mirror. In a spherical mirror, one of the two curved surfaces is coated with a thin layer of silver followed by a coating of red lead oxide paint. Thus, one side of the spherical mirror is opaque and the ...

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How convex and concave lens are different?

What are Lenses? “Lens is a piece of transparent material of which one or both sides are  spherical.”It is any transparent material having two surfaces, of which at least one is curved. Lenses refract light in such a way that an image of the object is formed.Each surface of a lens is a part of a sphere.The centre of that ...

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Reflection of light laws with types and examples in daily life

 Reflection of light definition Reflection is defined as:”When light traveling in a certain medium falls on the surface of another medium,a part of it turns back in the same medium.”We see a page of a book because light reflects from each part of the page in all directions,so that some of the light rays from each part of the page ...

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properties of light with characteristics

What is light and what does it consists of ?  Light is a form of energy which is given by luminous objects.The Sun,bulb,candle,etc.are luminous objects.Other objects which do not give out light are called non luminous objects.Light can pass through transparent materials.Glass,water,clear plastic and air are transparent materials.Light can not pass through translucent materials.A tracing paper,frosted glass and waxed paper ...

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Polarization of light:definition,types,uses and examples

What is polarization of light? “Separation of light waves with electric field vector oriented only in a single direction is called polarization of light or this is a process in which light and other radiations are restricted to vibrate in a single direction only and therefore the electric/magnetic field of the wave is unsymmetrical.” In 1808 Etienne Louis Malus (1775-1812) ...

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