Light intensity

Light intensity refers to how bright a light source appears or how much light it emits in a given area. It measures the amount of light reaching a surface, which affects visibility and perception of brightness. Higher intensity means more light, making objects clearer and surroundings brighter, while lower intensity results in dimmer conditions. Light intensity is important in photography, plant growth, and lighting design, and is usually measured in units like lumens or lux. It depends on factors such as the light source's strength, distance from the target, and any obstacles that may absorb or block the light.