You would like to make an incandescent lightbulb that is more efficient, so a gr

Question

You would like to make an incandescent lightbulb that is more efficient, so a greater percentage of the electrical power going in gets turned into visible light. Consider the effect of the following changes in Q14-18: You increase the temperature of the filament. True / false: This will reduce the amount of (unwanted) radiation at 1100nm. True / false: Increasing the temperature will increase the efficiency of the bulb. You could improve the efficiency by increasing the surface area of the filament but keeping the temperature constant.

Explanation / Answer

true True

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