Calculating Thermal Radiation: Power and Wavelength of a 47000K Object

Thread starter oldspice1212
Start date Oct 5, 2012
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Radiation Thermal Thermal radiation

AI Thread Summary

A 47000K object emits thermal radiation, and to calculate its power per square meter, Stefan-Boltzmann's law is applicable. The law states that the power emitted is proportional to the fourth power of the temperature. For peak wavelength, Wien's displacement law can be used, which relates temperature to wavelength. The discussion emphasizes the need for understanding these laws before tackling the problem. Overall, familiarity with these formulas is crucial for accurate calculations of thermal radiation.

Oct 5, 2012

oldspice1212

Consider a 47000K object that emits thermal radiation.

How much power does it emit per square meter?

What is its wavelength of peak intensity?What formula do I use to solve these questions?

Last edited: Oct 5, 2012

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Oct 5, 2012

soulhunter

http://en.wikipedia.org/wiki/Planck's_law

Oct 5, 2012

oldspice1212

useless

Oct 5, 2012

rock.freak667

Homework Helper

How about trying Stefan-Boltzmann's law?

Were you taught any topics prior to being given this problem?

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