Question: please read the question and do the question a and b, its different from another question. thank you very much 23.5 A radiation detector, oriented

please read the question and do the question a and b,

please read the question and do the question a and b, its different from another question. thank you very much

23.5 A radiation detector, oriented as shown in the sketch, is used to estimate heat loss through an opening in a furnace wall. The opening in this case is circular with a diameter of 2.5 cm. The detector has a surface area of 0.10 cm and is located 1 m from the fumace opening. Determine the amount of radiant energy reaching the detector under two conditions: a. The detector has a clear view of the opening b. The opening is covered by a semitransparent material with spectral transmissivity given by Ti = 0.8 for 0

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