A blackbody is a substance that absorbsradiation of all wavelengths and radiates in acontinuous spectrum at all wavelengths. It isgiven the name blackbody because an objectthat absorbs light at all wavelengths appearsblack to the human eye.By the end of the 19th century, severalproperties of blackbody radiation had beenestablished. First, the total intensity I (theaverage rate of radiation of energy per unitsurface area) emitted from a blackbody wasshown to be proportional to the fourth power ofits temperature:I=oT¹This is called the Stefan-Boltzmann law for ablackbody. The constant of proportionality o isknown as the Stefan-Boltzmann constant andwas determined to beo = 5.67 x 10-8 W/(m². K¹). It had alsobeen discovered that the wavelength at whichthe radiation intensity was maximum variedinversely with temperature. This result, known asthe Wien displacement law, is writtenAmT = 2.90 x 10-³ m. K.where Am is the wavelength with the greatestradiated intensity.✓ CorrectPart BAt what wavelength Am would the intensity of blackbody radiation be at a maximum when theblackbody is at 2900 K?Express your answer in nanometers to two significant figures.► View Available Hint(s)IVE| ΑΣΦAm 1.10-6SubmitPrevious Answers?Review | Constants | Periodic TabX Incorrect; Try Again; 26 attempts remainingnm

Answered: Image /qna-images/answer/4500268c-c948-4a42-bcfe-6a77365efe11.jpg

rties of blackbody radiation had been ished. First, the total intensity I (the ge rate of radiation of energy per unit e area) emitted from a blackbody was to be proportional to the fourth power of perature: I=oT¹ s called the Stefan-Boltzmann law for a pody. The constant of proportionality is as the Stefan-Boltzmann constant and etermined to be 5.67 × 10−8 W/(m² · K¹). It had also discovered that the wavelength at which diation intensity was maximum varied ely with temperature. This result, known as en displacement law, is written AmT=2.90 × 10-³ m.) m.K. At what wavelength Am would the intensity of blackbody radiation be at a maximum v blackbody is at 2900 K? Express your answer in nanometers to two significant figures. ▸ View Available Hint(s) [5] ΑΣΦ | Am = 1.10-6 Submit Previous Answers X Incorrect; Try Again; 26 attempts remaining ? nm

rties of blackbody radiation had been ished. First, the total intensity I (the ge rate of radiation of energy per unit e area) emitted from a blackbody was to be proportional to the fourth power of perature: I=oT¹ s called the Stefan-Boltzmann law for a pody. The constant of proportionality is as the Stefan-Boltzmann constant and etermined to be 5.67 × 10−8 W/(m² · K¹). It had also discovered that the wavelength at which diation intensity was maximum varied ely with temperature. This result, known as en displacement law, is written AmT=2.90 × 10-³ m.) m.K. At what wavelength Am would the intensity of blackbody radiation be at a maximum v blackbody is at 2900 K? Express your answer in nanometers to two significant figures. ▸ View Available Hint(s) [5] ΑΣΦ | Am = 1.10-6 Submit Previous Answers X Incorrect; Try Again; 26 attempts remaining ? nm

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.

Question

A blackbody is a substance that absorbs
radiation of all wavelengths and radiates in a
continuous spectrum at all wavelengths. It is
given the name blackbody because an object
that absorbs light at all wavelengths appears
black to the human eye.
By the end of the 19th century, several
properties of blackbody radiation had been
established. First, the total intensity I (the
average rate of radiation of energy per unit
surface area) emitted from a blackbody was
shown to be proportional to the fourth power of
its temperature:
I=oT¹
This is called the Stefan-Boltzmann law for a
blackbody. The constant of proportionality o is
known as the Stefan-Boltzmann constant and
was determined to be
o = 5.67 x 10-8 W/(m². K¹). It had also
been discovered that the wavelength at which
the radiation intensity was maximum varied
inversely with temperature. This result, known as
the Wien displacement law, is written
AmT = 2.90 x 10-³ m. K.
where Am is the wavelength with the greatest
radiated intensity.
✓ Correct
Part B
At what wavelength Am would the intensity of blackbody radiation be at a maximum when the
blackbody is at 2900 K?
Express your answer in nanometers to two significant figures.
► View Available Hint(s)
IVE| ΑΣΦ
Am 1.10-6
Submit
Previous Answers
?
Review | Constants | Periodic Tab
X Incorrect; Try Again; 26 attempts remaining
nm

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