A large cavity that has a very small hole and is maintained at a temperature Tis a good approximation to an ideal radiator or blackbody. Radiation can pass into or out of the cavity only through the hole. The cavity is a perfect absorber, since any radiation incident on the hole becomes trapped inside the cavity. Such a cavity at 500 C has a hole with area 5.00 mm2. How long does it take for the cavity to radiate 300 J of energy through the hole?

A large cavity that has a very small hole and is maintained at a temperature Tis a good approximation to an ideal radiator or blackbody. Radiation can pass into or out of the cavity only through the hole. The cavity is a perfect absorber, since any radiation incident on the hole becomes trapped inside the cavity. Such a cavity at 500 C has a hole with area 5.00 mm2. How long does it take for the cavity to radiate 300 J of energy through the hole?

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter6: Photons And Matter Waves

Section: Chapter Questions

Problem 57P: (a) For what temperature is the peak of blackbody radiation spectrum at 400 nm? (b) If the...

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