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What kind of relationship does the intensity or brightness of light have with distance from the light source?
What kind of relationship does the intensity or brightness of light have with distance from the light source?
If the intensity of light diminishes, what can be inferred about the light source?
If the intensity of light diminishes, what can be inferred about the light source?
What does the measurement of lumens indicate about a bulb?
What does the measurement of lumens indicate about a bulb?
If the intensity of light increases, what can be inferred about the light source?
If the intensity of light increases, what can be inferred about the light source?
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