A small 100 cd spring is located in the center of a spherical mirror with a diameter of 10 cm and a focal length of 50 cm. Assuming that the total reflectance is about 80%, obtain the average brightness of the parallel beam reflected from the mirror.
A small 100 cd spring is located in the center of a spherical mirror with a diameter of 10 cm and a focal length of 50 cm. Assuming that the total reflectance is about 80%, obtain the average brightness of the parallel beam reflected from the mirror.
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 11.21P
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A small 100 cd spring is located in the center of a spherical mirror with a diameter of 10 cm and a focal length of 50 cm. Assuming that the total reflectance is about 80%, obtain the average brightness of the parallel beam reflected from the mirror.
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