Question

Describe how the intensity of light changes with distance from a light source.

Answer 1

Answer:

decreases

Explanation:

The intensity of light is inversely proportional to the square of distance between the source and the observation point.

$Intensity \propto \frac{1}{distance^{2}}$

So, as the distance increases by the factor of 2, then intensity becomes one fourth.

As the distance becomes half, the intensity becomes four times,