Respuesta :
					                   The term INTENSITY is used to describe the rate at which light spreads over a surface of a given area some distance from a source. 
					                
					                
					             Answer:
Intensity
Explanation:
The term intensity is used to describe the rate at which light spreads over a surface of a given area some distance from a source. The intensity varies with the distance from the source and the power of the source.
 
					                  