Question
A tungsten light bulb filament may operate at 2900 K. What is its Fahrenheit temperature? What is this on the Celsius scale?
Question by OpenStax is licensed under CC BY 4.0
Final Answer

2600∘C2600^\circ\textrm{C}
4800∘F4800^\circ\textrm{F}

Solution video

OpenStax College Physics for AP® Courses, Chapter 13, Problem 4 (Problems & Exercises)

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Video Transcript
This is College Physics Answers with Shaun Dychko. A tungsten filament in an incandescent bulb has a temperature of about 2900 kelvin. And we're going to write that in degrees Celsius by subtracting 273.15 and we end up with 2600 degrees Celsius, keeping only precision to the thousands place here because this number is precise to the thousands place. Then to get the temperature in degrees Fahrenheit, we take this temperature in degrees Celsius, multiply it by nine over five and add 32. And using the unrounded value here from this formula here, 2626.85 degrees Celsius multiplied by nine over five plus 32 and you get 4800 degrees Fahrenheit.