« previous next »

Author Question: The Balmer lines of hydrogen involve electron transitions from the ground state to higher levels. ... (Read 74 times)

imowrer

  • Hero Member
  • *****
  • Posts: 514
on: Jul 27, 2018
The Balmer lines of hydrogen involve electron transitions from the ground state to higher levels.
 
  Indicate whether the statement is true or false

Question 2

Each choice below lists a spectral type and luminosity class for a star. Which one is a red supergiant?
 
  A) spectral type M1, luminosity class V
  B) spectral type O9, luminosity class I
  C) spectral type G2, luminosity class V
  D) spectral type M2, luminosity class I


cuttiesgirl16

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Jul 27, 2018
Answer to Question 1

FALSE

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Common hydrogen bonds in biological systems Common hydrogen bonds in biological systems
The structural formulas show the state of ionization that would predominate at pH 7.0 The structural formulas show the state of ionization that would predominate at pH 7.0
The age-dependent curve of salivary progresterone levels in three populations. The age-dependent curve of salivary progresterone levels in three populations.
Object and Word Recognition After Midsegments of Lines Have Been Eliminated Object and Word Recognition After Midsegments of Lines Have Been Eliminated
Drive-on ramps are dangerous to use. The wheels on the ground level must be chocked (blocked) to ... Drive-on ramps are dangerous to use. The wheels on the ground level must be chocked (blocked) to ...
Plot of Land (Modified Offset Method) - Offset lines Plot of Land (Modified Offset Method) - Offset lines
Video: Electrocardiogram Examination

For a complete list of videos, visit our video library