Physics · Optics
The intensity of illumination on a surface from a source of light varies inversely as the square of the distance of the surface from the source. What is the effect of moving a piece of paper 4 times as far from the source?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Multiply the intensity by 64
- 2Divide the intensity by 64✓
- 3Multiply the intensity by 16
- 4Divide the intensity by 16
Correct answer
Divide the intensity by 64
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