Explanation:

Introduction:
When light travels from a source, such as a bulb, it spreads out in all directions. As the distance from the source increases, the same amount of light is spread over a larger area. This leads to a decrease in the intensity of light.

Explanation:
The intensity of light refers to the amount of light energy that passes through a given area in a given time. It is directly proportional to the brightness of the light source.

Inverse Square Law:
The intensity of light follows the inverse square law, which states that the intensity is inversely proportional to the square of the distance from the source. Mathematically, this can be represented as:

Intensity ∝ 1/(Distance)²

This means that as the distance from the source increases, the intensity of light decreases. The decrease in intensity is proportional to the square of the increase in distance.

Example:
For example, let's consider a light bulb. When you are close to the bulb, the light appears bright because the intensity is high. However, as you move away from the bulb, the same amount of light is distributed over a larger area, resulting in a decrease in intensity. The light appears dimmer because it is spread out.

Real-Life Applications:
This phenomenon is observed in various real-life situations. For instance, if you stand closer to a campfire, the fire appears brighter. However, as you move away, the intensity of the fire's light decreases, and it appears dimmer. Similarly, the headlights of a car appear brighter when you are close to the car, but as you move away, the intensity of the light decreases.

Conclusion:
In conclusion, as the distance from a light source increases, the intensity of light decreases. This is due to the spreading out of light over a larger area, resulting in a decrease in the amount of light energy reaching a given area.