Final answer:
Light intensity near a plant and its calculation using the Inverse Square Law is a concept in Physics, relevant to students at the high school level. To find the new intensity when moving a lamp, apply the inverse square law using consistent units of measure.
Step-by-step explanation:
This law governs how light intensity diminishes as the distance from the light source increases. If you know the intensity at a certain distance, you can calculate the intensity at another distance using the equation that relates intensity to the inverse square of the distance. For instance, if a lamp provides a certain light intensity at 2 meters, by placing it 18 cm away from a plant, the new intensity can be calculated by adjusting for the difference in distance. Remember that to apply the equation correctly, you must maintain consistent units; therefore, you should convert 18 cm to meters before plugging it into the equation.