Author Question: Classical theories predict that most of the energy from a blackbody should be radiated: a. at the ... (Read 69 times)

c0205847

  • Hero Member
  • *****
  • Posts: 531
Classical theories predict that most of the energy from a blackbody should be radiated:
 a. at the wavelength given by Wien's displacement law.
  b. as thermal radiation in the infrared region.
  c. a blackbody should not radiate.
  d. as ultraviolet light.

Question 2

What is the surface temperature of a distant star (which emits light as if it were a blackbody) where the peak wavelength is 456 nm? (Hint: The surface of the human body at 35 C has a peak wavelength of 9.41 mm). (1 nm = 10-9 m = 10-3 mm)
 a. 5100 K
  c. 6040 K
  b. 4510 K
  d. 6360 K



xoxo123

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

D

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

For a complete list of videos, visit our video library