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The spectral emissivity and spectral reflectivity of a diffuse surface are given below: 1.0 0.2 0.2 0.1 n1 1.40 3.0 A (um) 1.40 3.0 A (um) i- Determine the total emissive power of the surface (in W/m²) if the surface is at 2000 K.

The spectral emissivity and spectral reflectivity of a diffuse surface are given below: 1.0 0.2 0.2 0.1 n1 1.40 3.0 A (um) 1.40 3.0 A (um) i- Determine the total emissive power of the surface (in W/m²) if the surface is at 2000 K.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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i- Determine the total emissive power of the surface if the surface is at K?

The spectral emissivity and spectral reflectivity of a diffuse surface are given below: 1.0 0.2 0.2 0.1 1.40 3.0 λ (μm) 1.40 3.0 λ (μm) i- Determine the total emissive power of the surface (in W/m?) if the surface is at 2000 K. ii- Determine the absorptivity and reflectivity of the surface for radiation coming from the source at temperature of 1000 K. Sketch the spectral transmissivity, t What is the total absorptivity of the surface for the irradiation depicted below? iii- iv- 5000 1.0 2.0 3.0 4.0 5.0 1 (um)
Transcribed Image Text:The spectral emissivity and spectral reflectivity of a diffuse surface are given below: 1.0 0.2 0.2 0.1 1.40 3.0 λ (μm) 1.40 3.0 λ (μm) i- Determine the total emissive power of the surface (in W/m?) if the surface is at 2000 K. ii- Determine the absorptivity and reflectivity of the surface for radiation coming from the source at temperature of 1000 K. Sketch the spectral transmissivity, t What is the total absorptivity of the surface for the irradiation depicted below? iii- iv- 5000 1.0 2.0 3.0 4.0 5.0 1 (um)
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