
Concept explainers
Does a lightbulb at a temperature of 2500 K produce as white a light as the Sun at 6000K?

Answer to Problem 1Q
Solution:
No. The bulb, which is at a cooler temperature, has a redder tint to it than that of the hotter Sun.
Explanation of Solution
At temperature above 2000 K, objects glow with a yellow or whitish color, for example, the filament of a lightbulb. The temperature and color temperature may now be 3000 K continue heating and at a very high temperature, say 6000K the object will be "white hot" and produce an almost white light.
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Chapter 27 Solutions
Physics: Principles with Applications
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