Author Question: A blackbody is an ideal system that A) absorbs 100 of the light incident upon it, but cannot emit ... (Read 72 times)

CharlieWard

  • Hero Member
  • *****
  • Posts: 578
A blackbody is an ideal system that
 
  A) absorbs 100 of the light incident upon it, but cannot emit light of its own (i.e., a black body).
  B) emits 100 of the light it generates, but cannot absorb radiation of its own.
  C) either absorbs 100 of the light incident upon it, or emits 100 of the radiation it generates.
  D) absorbs 50 of the light incident upon it, and emits 50 of the radiation it generates.

Question 2

Consider a Carnot refrigerator which is operated between -3C and 23.C. What is its COP?
 
  A) 10
  B) 9.0
  C) 11.
  D) 10.
  E) 3.1



FergA

  • Sr. Member
  • ****
  • Posts: 352
Answer to Question 1

B

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

For a complete list of videos, visit our video library