Close your eyes for a while if u r in day and reading these texts. Switch off all lights for a moment if you are in night. Then........unfurl your eyelid....(or switch on the light).....alas!! what a wonder ....there are radiation everywhere...all matter around you are glittering with radiation...our eye - the gateway of emancipation of life, that allows the rays to reach the retina and our brain's sensory organs perceive it and v feel it in our mind. Do this marvellous sensation propel our thinking about the wonders of nature ?.
Light is composed of elementary particles called photons. Light can exhibit properties of both waves and particles. This property is referred to as wave-particle duality. The study of light, known as optics, is an important research area in modern physics.
