Physics · Electromagnetic Waves
A 100 W light bulb is able to convert 10% of its power to visible radiation. The average intensity of the visible radiation at a distance of 1 m from the bulb is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 18 W/m2
- 210 W/m2
- 30.8 W/m2✓
- 40.08 W/m2
Correct answer
0.8 W/m2
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