Author Question: A mountain top is an especially good site for infrared telescopes since: A) there you are closer ... (Read 16 times)

SGallaher96

  • Hero Member
  • *****
  • Posts: 509
A mountain top is an especially good site for infrared telescopes since:
 
  A) there you are closer to celestial objects.
  B) you are above most of the carbon dioxide and water vapor in the atmosphere.
  C) the cold weather helps the sensitivity of infrared detectors.
  D) less air above means better seeing in many cases.
  E) All of the above are factors.

Question 2

Most SETI searches are done at:
 
  A) X-ray wavelengths.
  B) infrared wavelengths.
  C) visual wavelengths.
  D) radio wavelengths.
  E) gamma wavelengths.



bob

  • Sr. Member
  • ****
  • Posts: 343
Answer to Question 1

E

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

For a complete list of videos, visit our video library