You place three nonflammable objects in a fire. They are identical in shape and size, but one object is black, the second is white, and the third is shiny silver. After a few minutes, all three objects are at the same temperature: 1800° C. They remain solid and are now glowing with thermal radiation. Which one is glowing most brightly?
A. The first object (black).
B. They are all glowing with equal brightness.
C. The third object (silver).
D. The second object (white).
Answer:A
You place three nonflammable objects in a fire. They are identical in shape and size, but one object is black, the second is white, and the third is shiny silver. After a few minutes, all three objects are at the same temperature: 1800° C. They remain solid and are now glowing with thermal radiation. Which one is glowing most brightly?
A. The first object (black). B. They are all glowing with equal brightness. C. The third object (silver). D. The second object (white).