Physics

Difference between Reflection and Refraction

Reflection and refraction are two fundamental but distinct phenomena describing how light interacts with different surfaces and materials. Here is a unique, detailed explanation of their differences and underlying physics. Core Definition and ConceptReflection is the process by which light bounces back when it strikes a smooth, shiny surface, such as a mirror, and returns to the medium from which it originated. The angle at which the light approaches the surface (angle of incidence) is always eq

Raman Effect and its importance

IntroductionWhen Light Spoke BackEvery beam of light carries within it a story, a coded record of the matter it has touched. For centuries, scientists could read only a fraction of that story. Then, on February 28, 1928, in a modest laboratory in Calcutta, Sir Chandrasekhara Venkata Raman and his student K. S. Krishnan witnessed something that would rewrite the rules of light-matter interaction. A beam of sunlight passed through a liquid, scattered back in colors that had no right to be the