Answered: Q.10. The intensity of the radiation…

Q.10. The intensity of the radiation from an object is found to be a maximum at 2000 cm-1. Assuming that the object is a black body, calculate its temperature.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter11: Heat Transfer By Radiation

Section: Chapter Questions

Problem 11.2P: A tungsten filament is heated to 2700 K. At what wavelength is the maximum amount of radiation...

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Concept explainers

Radiation

Radiation can be described as the energy in the form of a particular matter or electromagnetic waves traveling in the air and can be in the form of light, sound, and heat. Radiation can be detected through special instruments like X-rays. The radiation from a cooler object is less intense as compared to the radiation from hot objects.

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Q.10. The intensity of the radiation from an object is found to be a maximum at 2000 cm-1.
Assuming that the object is a black body, calculate its temperature.
Q.11. The intensity of the radiation from an object is found to be a maximum at 282 GHz (1

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€ = 0.7 R = 50 cm T = 500°C Consider a furnace with a spherical cavity (R = 50 cm). If the walls of the cavity have an emissivity of 0.7 and a temperature of 500 ˚C, calculate the total emmisive power, E, inside the cavity.