This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Why don't we see hydrogen Balmer lines in the spectra of stars with temperatures of 45,000 K? a. ... (Read 73 times)

AEWBW

  • Hero Member
  • *****
  • Posts: 579
on: Jul 27, 2018
Why don't we see hydrogen Balmer lines in the spectra of stars with temperatures of 45,000 K?
 
  a. There is no hydrogen in stars this hot.
  b. The stars are hot enough that most of the hydrogen is ionized and the atoms cannot absorb energy.
  c. These stars are so cool that nearly all of the electrons in the hydrogen atom are in the ground state.
  d. Stars of this temperature are too cool to produce an absorption spectrum.
  e. Stars of this temperature are too hot to produce an absorption spectrum.

Question 2

Violet light has a wavelength of approximately _______.
 
  a. 400 nm
  b. 4000 nm
  c. 7000 nm
  d. 700 nm
  e. 3108 m


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Dnite

  • Sr. Member
  • ****
  • Posts: 297
Reply #1 on: Jul 27, 2018
Answer to Question 1

b

Answer to Question 2

a


AEWBW

  • Hero Member
  • *****
  • Posts: 579
Reply #2 on: Jul 27, 2018
TY


Dnite

  • Sr. Member
  • ****
  • Posts: 297
Reply #3 on: Jul 27, 2018
You're welcome


« previous next »
 

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Breast Palpation Methods, Parallel Lines Breast Palpation Methods, Parallel Lines
Binary Stars Binary Stars
Some scholars regard Walt Whitman as a poet of nature, and others, a poet of the body—a reference to Some scholars regard Walt Whitman as a poet of nature, and others, a poet of the body—a reference to
Breathe Carolina & Shanahan ft. Haliene - Stars & Moon Breathe Carolina & Shanahan ft. Haliene - Stars & Moon
Hydrogen bonding patterns for the a- and 310 helices Hydrogen bonding patterns for the a- and 310 helices
Combustion analysis of 0.150 g of an unknown compound containing carbon, hydrogen, and oxygen ... Combustion analysis of 0.150 g of an unknown compound containing carbon, hydrogen, and oxygen ...
Video: Transmission Across a Synapse

For a complete list of videos, visit our video library