Light is defined as the electromagnetic radiation with wavelengths between 380 and 750 nm which is visible to the human eye.
Light is a type of energy. It is a form of electromagnetic radiation of a wavelength which can be detected by the human eye. It is a small part of the electromagnetic spectrum and radiation given off by stars like the sun. ... Light exists in tiny energy packets called photons.
Light is a form of energy. The Sun is a very important source of light energy. Without the energy from the Sun, there would be no plants or animals on Earth's surface.
In physics colour is associated specifically with electromagnetic radiation of a certain range of wavelengths visible to the human eye. The radiation of such wavelengths constitutes that portion of the electromagnetic spectrum known as the visible spectrum—i.e., light.