What Is Light?
 Hi Guys, Today I am going to tell you about:- WHAT IS LIGHT? This will be a short post. So light  is something that helps us to see. We have not yet properly defined light. Light is generally  electromagnetic radiation . But what is this electromagnetic radiation?  Electromagnetic radiation  is generally a wave-energy that can travel through a vacuum . I will tell you about electromagnetic radiation  in my next post. If we want to know about light , we should know about the electromagnetic spectrum . The electromagnetic spectrum  (Or the spectrum of light) contains the visible light , infrared , radio waves  etc. You might be getting confused. But read till the end. Light  consists of photons , which travels in the form of a wave . You all might know that wave  has a wavelength . The wavelength decides the  type of light  that is emitted  from an object. So the different wavelength of light is put in the electromagnetic spectrum like  radio waves , ultraviolet radiation , visible ...