Lasers and Active Medium

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Questions and Answers

What type of material can be used as an active medium in a laser?

  • Solid crystals like ruby or Nd:YAG (correct)
  • Superfluids like liquid nitrogen
  • Insulators like wood
  • Metals like copper

What is the purpose of the high reflectance mirror in a laser?

  • To refract the laser light
  • To transmit the laser light
  • To absorb the laser light
  • To reflect the laser light back into the active medium (correct)

What is the state of the electrons in the active medium after being excited by an energy source?

  • Meta-stable energy level (correct)
  • Thermal equilibrium
  • Ionized state
  • Ground state

How do excitation mechanisms pump energy into the active medium?

<p>By one or more of three basic methods: optical, electrical, or chemical (A)</p> Signup and view all the answers

What is the primary difference between a high reflectance mirror and a partially transmissive mirror?

<p>Their reflectance percentage (A)</p> Signup and view all the answers

A patient who is legally unable to make decisions is classified as having

<p>InFcomEpeteEnce (C)</p> Signup and view all the answers

What is the primary reason a patient may be classified as a threat to self or others?

<p>Psychiatric settings (D)</p> Signup and view all the answers

A patient who is clinically determined to be unable to make rational decisions is classified as having

<p>Incapacity (C)</p> Signup and view all the answers

What is the intellectual capacity to understand, analyze, and judge information?

<p>M¡ Competence (B)</p> Signup and view all the answers

What is the primary difference between Incompetence and Incapacity?

<p>Legal vs. Clinical Determination (B)</p> Signup and view all the answers

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Study Notes

  • Incompetence refers to a patient's legal inability to make decisions, often due to conditions such as Dementia, mental retardation, or intellectual disabilities.

Types of Decision-Making Incapacity

  • Incapacity occurs when a patient is clinically determined to be unable to make rational decisions, which can be caused by factors such as:
    • Lack of consciousness
    • Delirium
    • Psychosis

Threat to Self or Others

  • In psychiatric settings, a patient may be deemed a threat to themselves or others, which can impact their decision-making capacity.

Competence in Decision-Making

  • Competence refers to a patient's intellectual capacity to:
    • Understand information
    • Analyze information
    • Judge information

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