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What are aromatic hydrocarbons ?

 INTRODUCTION            Aromatic compounds are regarded as the class of organic compounds which resemble benzene in their chemical characteristics. Many of the aromatic compounds posses fragment odour 'aroma'  . In fact the term aromatic is somehow associated with chemical stability. The stable character of aromatic compound is attributed to the presence of a ring structure specific of benzene. All aromatic compounds generally contain one or more benzene rings in their molecules. As naphthalene, anthracene, etc. are also aromatic compounds, those are often called arenes and benzene and its derivatives are called Benzenoids . There are a number of cyclic compounds which do not contain a benzene ring but are still aromatic in nature. Such compounds are called non-benzenoids. Like the aliphatic compounds, aromatic compounds also include hydrocarbons, hydroxy compounds, aldehydes, ketones, acids etc.  Nomenclature of Aromatic compounds -: here ?...

Albert Einstein's theory of relativity. ( Part- 1 )

Hello friends                     Albert Einstein is a famous scientist who changed the way people see the World for a common man. Where did the principles of physics reach the human species today and You know, not only our species, but a single person, thinking of science, can reach from where to where. Simple thing if you know the rules of the game then you will play better than others. And let's be frank, All we have to do is mean that we can improve our life and the lives of people around us. And this is the story of my site ' Skss  ' to understand deeply this world and this life. Here I am a website Which has 3 parts in total like here 👇 (Albert Einstein Theory of relativity part-1,part-2, part-3) are updated soon, If you see it till the end, then you will have knowledge of your level As much as one Physics graduate of university. Lets start            So the story started in 1831, a royal society...

What is Wave Optics ? Wave Optics notes, definition, introduction etc.

Wave Optics -: Learning objectives   -: Electromagnetic waves, Plane waves.    -: Velocity of electromagnetic waves.    -: Properties of electromagnetic waves.    -: Hertz experiment.    -: Electromagnetic spectrum.    -: Huygen's wave theory, Huygen's principle, explanation of reflection and refraction.     -: Interference, Young's double slit experiment, Lloyd's single mirror, Fresnel's bi-prism experiment.  1. ELECTROMAGNETIC WAVES James Clerk Maxwell, one of the pioneers in the field of electromagnetic waves, gave his theory of electromagnetic waves in 1865. An electromagnetic wave is composed of oscillating electric and magnetic fields which oscillate in manually perpendicular planes. These two planes, besides being perpendicular to each other, are also perpendicular to the direction of propagation of the wave. Using his equations, called Maxwell's equations , he derived the formula for speed of electromagne...