Author Question: The Balmer lines of hydrogen involve electron transitions from the ground state to higher levels. ... (Read 75 times)

imowrer

  • Hero Member
  • *****
  • Posts: 514
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
Answer to Question 1

FALSE

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

For a complete list of videos, visit our video library