Solar Spectrum

The energy liberated by sun reaches the surface of earth in the form of three types of waves, all having different wavelengths. These are: Ultraviolet rays Visible light and Infra-red rays Out of these three types of waves, the ultraviolet rays and infra-red rays are...

Solar Energy

Sun is the earth’s primary source of energy. Sun provides us extremely large amount of energy in the form of both heat and light. The energy given out by sun is called solar energy. This enormous amount of energy is produced in sun by the nuclear fusion reaction...

Source of Energy

Energy of a body is the capacity to do work. Thus, anybody which can do work possesses energy. Our all activities depend on energy. For example, we need energy for cooking food, lighting, transportation, running machines and above all to live. Mainly energy is...