This topic contains a solution. Click here to go to the answer

Author Question: The inverted population necessary for laser action A) refers to the negative energy levels of ... (Read 60 times)

khang

  • Hero Member
  • *****
  • Posts: 569
The inverted population necessary for laser action
 
  A)
 
  refers to the negative energy levels of electrons.
  B)
 
  comes from upside-down levels in certain atoms.
  C)
 
  refers to the higher energy state being populated more than one below it.
  D)
 
  is another way of saying coherent.
  E)
 
  is another way of saying incoherent.

Question 2

A diverging lens cannot be used as a magnifying glass.
 
  Indicate whether the statement is true or false



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jessofishing

  • Sr. Member
  • ****
  • Posts: 329
Answer to Question 1

C

Answer to Question 2

TRUE




khang

  • Member
  • Posts: 569
Reply 2 on: Jul 29, 2018
Thanks for the timely response, appreciate it


FergA

  • Member
  • Posts: 352
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

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?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

For a complete list of videos, visit our video library