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A small surface of area A1 = 5 cm? emits radiation as a blackbody, and part of the radiation emitted by A1 strikes another small surface of area A = 8 cm? oriented as shown in Fig. 4. If the rate at which radiation em itted by Ai that strikes Aa is measured to be 274 x 106 w, determine i the intensity of the radiation emitted by A1, and ii the temperature of A1. i. Az = 8 cm? 02 = 40°| 0, = 55° r=80 cm A = 5 cm? Fig 4

A small surface of area A1 = 5 cm? emits radiation as a blackbody, and part of the radiation emitted by A1 strikes another small surface of area A = 8 cm? oriented as shown in Fig. 4. If the rate at which radiation em itted by Ai that strikes Aa is measured to be 274 x 106 w, determine i the intensity of the radiation emitted by A1, and ii the temperature of A1. i. Az = 8 cm? 02 = 40°| 0, = 55° r=80 cm A = 5 cm? Fig 4

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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A small surface of area A1 = 5 cm? emits radiation as a blackbody, and part of the radiation emitted by Ai strikes another small surface of area A2 = 8 cm? oriented as shown in Fig. 4. If the rate at which radiation em itted by Ai that strikes A is measured to be 274 x 106 W, determine i. the intensity of the radiation emitted by A1, and the temperature of A1. ji. Az = 8 cm? 02 = 40° 10, = 55° r = 80 cm A = 5 cm? Fig 4
Transcribed Image Text:A small surface of area A1 = 5 cm? emits radiation as a blackbody, and part of the radiation emitted by Ai strikes another small surface of area A2 = 8 cm? oriented as shown in Fig. 4. If the rate at which radiation em itted by Ai that strikes A is measured to be 274 x 106 W, determine i. the intensity of the radiation emitted by A1, and the temperature of A1. ji. Az = 8 cm? 02 = 40° 10, = 55° r = 80 cm A = 5 cm? Fig 4
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