« previous next »

Author Question: The red laser beam from a helium-neon laser corresponds to a spectral line of A) helium. B) ... (Read 199 times)

jessicacav

  • Hero Member
  • *****
  • Posts: 558
on: Jul 29, 2018
The red laser beam from a helium-neon laser corresponds to a spectral line of
 
  A) helium.
  B) neon.
  C) both of these
  D) neither of these

Question 2

A helium-neon laser beam in a vacuum is
 
  A) red.
  B) orange.
  C) white.
  D) invisible.
  E) none of the above


sierramartinez

  • Sr. Member
  • ****
  • Posts: 313
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

jessicacav

  • Hero Member
  • *****
  • Posts: 558
Reply #2 on: Jul 29, 2018
Thanks


sierramartinez

  • Sr. Member
  • ****
  • Posts: 313
Reply #3 on: Jul 29, 2018
Welcome :)


« previous next »
 

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Historical Time Line of Regulatory Acts, Standards, and Organizations Historical Time Line of Regulatory Acts, Standards, and Organizations
How to find the midpoint of a line segment How to find the midpoint of a line segment
How to find the equation of a line that is perpendicular to a line passing through a point How to find the equation of a line that is perpendicular to a line passing through a point
Finding the equation of a line Finding the equation of a line
Which outcome corresponds to the reaction:H3AsO4 + 3 OH- → 3 H2O + AsO43-? Which outcome corresponds to the reaction:H3AsO4 + 3 OH- → 3 H2O + AsO43-?
Number line (5 - 1) Number line (5 - 1)
Video: Homeostasis (range of body conditions, normal limits, mild stresses & severe stresses)

For a complete list of videos, visit our video library