Light is the form of energy that gives us sensetion of vision. We can see the surroundings because of light. Light always travel in straight path. This phenonmenon is known as Rectilinear propagation of light. Light can travel through vacuum. Light is faster than sound. There are two sources of light they are Natural and artificial sources of light. Natural sources of light are the lights made by nature. For example sun, Fire fly, Angel fish, fire etc. Artificial sources of light are made by humans. For example diyo, torch, candle etc.
