Intensity of light emitting from the bulb is 3.5 watt/m².
To find the answer, we need to know about the intensity of the light.
What's the expression of intensity of light?
Intensity of light= power/area
What's the intensity at 1.51 m away from a 100W light bulb?
- Light bulb emitis spherical waves of light. The area of the spherical wave front at 1.51m from the bulb = 4π(1.51)²= 28.65 m²
- Intensity= 100/28.65 = 3.5 watt/m²
Thus, we can conclude that the intensity of light bulb at 1.51 m is 3.5 watt/m².
Learn more about the intensity of light here:
brainly.com/question/3917542
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