« previous next »

Author Question: A _____ is a piece of glass with thousands of microscopic parallel lines scribed onto its surface to ... (Read 20 times)

casperchen82

  • Hero Member
  • *****
  • Posts: 540
on: Jul 27, 2018
A _____ is a piece of glass with thousands of microscopic parallel lines scribed onto its surface to produce a spectrum.
 
  A) grating
  B) charge-coupled device
  C) photometer
  D) spectrograph

Question 2

The main reason for connecting two or more telescopes in an interferometer is to:
 
  A) observe more objects in a shorter amount of time.
  B) improve resolving power.
  C) enhance seeing.
  D) increase diffraction fringes.


k2629

  • Sr. Member
  • ****
  • Posts: 357
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Did you know?

Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

The Venusian Surface The Venusian Surface
Shutoff valves must be used on vehicles equipped with plastic fuel lines to isolate the cause of a ... Shutoff valves must be used on vehicles equipped with plastic fuel lines to isolate the cause of a ...
Surface winds travel at an angle across isobars, toward low pressure. Surface winds travel at an angle across isobars, toward low pressure.
Lines of the lateral thorax Lines of the lateral thorax
Physics - A Mixture of Series and Parallel Capacitance Physics - A Mixture of Series and Parallel Capacitance
What is the maximum velocity (in km/s) of a photoelectron emitted from a surface whose work ... What is the maximum velocity (in km/s) of a photoelectron emitted from a surface whose work ...
Video: Prone Position

For a complete list of videos, visit our video library