Question: The temperature of the glass surface of a 60-W lightbulb is d65oC when the room temperature is 18oCm Estimate the temperature of a 150-W lightbulb

The temperature of the glass surface of a 60-W lightbulb is d65oC when the room temperature is 18oCm Estimate the temperature of a 150-W lightbulb with a glass bulb the same size. Consider only radiation, and assume that 90% of the energy is emitted as heat.

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