principle used in optical fibres

Optical Communication - Optical Fibres - An optical fiber is a dielectric wave guide that transports light signals from one place to another just as a twisted-wire pair or a coaxial cable transports electrical signals. It consists of a central core within whi..

An optical fiber is a dielectric wave guide that transports light signals from one place to another just as a twisted-wire pair or a coaxial cable transports electrical signal..

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A positively charged particle can be accelerated to high energy with the help of an oscillating electric field, by making it cross the same electric field time and again with the use of a strong magnetic fiel..

. The distillate, which contains water and the liquid, separates out into two layers as both are immiscible with each other. The two layers can be separated using a separating funn..

on the given wavefront AB. The distance traveled by light in t secs will be 'ct' where c is the velocity of light. With point 1 as centre and ct as radius, draw a sphere as shown (dotted circles). Repeat for points 2 and 3 and so on. Now draw a surface A 1 B 1 and A 2 B 2 such that they touch th..

Optical Center - It is the center of a lens. It is denoted by the letter O. A ray of light passing through the optical center of a lens does not suffer any deviation. It is also referred to as optic cent..

It is the center of a lens. It is denoted by the letter O. A ray of light passing through the optical center of a lens does not suffer any deviation. It is also referred to as optic cente..

The previous chapter dealt with the refraction of light by lenses and also about the formation of various types of images by a lens for different positions of the object. In this chapter let us find out how lenses are used in optical instruments like microscopes and telesc..

For any natural number n, prove tha..