Greenhouse phenomenon

The video tutorial defines light as an external factor affecting vision, explaining its nature as electromagnetic waves. It classifies light into visible and invisible types, such as infrared and ultraviolet rays. The tutorial further explores the spectrum of white light, dividing it into seven colors, and classifies media based on their transparency. Finally, it explains light intensity as the amount of light falling on a surface, influenced by the distance from the light source.

What is the definition of light as described in the text?

How are light waves classified according to the text?

What happens to white light when it is split?

What are the three types of media classified based on their ability to allow light to pass through?

Explain the concept of light intensity as mentioned in the text.