Physics · Optics and Illumination
Which of the following factors significantly affects the illumination level on a surface according to the inverse-square law?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The type of electrical wiring used.
- 2The distance between the light source and the illuminated area.✓
- 3The ambient temperature of the room.
- 4The color of the external switches.
Correct answer
The distance between the light source and the illuminated area.
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