Calculate the light intensity 1.45 m from a 100.0 W light bulb.Assume that the light radiates equally in all directions. A)3.79 W/m² B)4.36 W/m² C)47.6 W/m² D)54.7 W/m²

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Quizplus · Accepted Answer

The intensity of light is calculated using the formula I = P / (4πr²), where P is the power of the light source and r is the distance from the source. Substituting the given values, I = 100 W / (4π(1.45 m)²) = 3.79 W/m².

Calculate the Light Intensity 1