Light

 Light

Light is a form of electromagnetic radiation emitted by hot objects like lasers, bulbs, and the sun. Light is a kind of kinetic energy that enables the human eye to see or make things visible. Light energy is a form of electromagnetic radiation that can be seen by the human eye.

Properties of light

Following are the properties of light:

• Reflection of light: Every light follows the law of reflection which states that the angle of incidence is equal to the angle of reflection.
• Refraction of light: Refraction of light takes place when the light ray changes its velocity it passes from one medium to another. Index of refraction is used as a means to measure how much light refracts.
• Dispersion: Dispersion of light is defined as the process in which the white light separates into different colours based on its wavelength when passed through a glass prism.
•  Diffraction: The effect of bending light around small obstacle corners and hence its encroachment into the geometric shadow region is called diffraction.