« previous next »

Author Question: In a laser a. light is amplified by stimulated emission of radiation b. the emitted light is ... (Read 96 times)

ts19998

  • Hero Member
  • *****
  • Posts: 531
on: Jul 28, 2018
In a laser
 a. light is amplified by stimulated emission of radiation
  b. the emitted light is monochromatic
  c. the emitted light is coherent
  d. there is a population inversion of electrons in atoms
  e. all of the above

Question 2

The continuous part of an x ray spectrum of an atom occurs because
 a. of photon absorption
  b. of the photoelectric effect
  c. electrons in the atom make transitions to lower energy levels
  d. of the uncertainty principle
  e. of rapid deceleration of the bombarding electrons


zhanghao

  • Sr. Member
  • ****
  • Posts: 316
Reply #1 on: Jul 28, 2018
Answer to Question 1

E

Answer to Question 2

E


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

An example of the founder effect with subsequent adaptive radiation. An example of the founder effect with subsequent adaptive radiation.
How phytochrome acts as a molecular light switch. How phytochrome acts as a molecular light switch.
The light produced by fireflies is the result of a reaction The light produced by fireflies is the result of a reaction
Absorption of ultraviolet light by aromatic amino acids Absorption of ultraviolet light by aromatic amino acids
Absorption spectra and light energy Absorption spectra and light energy
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: Epidural Hematoma

For a complete list of videos, visit our video library