Cryogenics: Low Temperature Physics
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Questions and Answers

What is the primary focus of cryogenics?

  • Understanding the behavior of gases at room temperature
  • Studying the properties of materials at high temperatures
  • Producing and studying extremely low temperatures (correct)
  • Developing new materials for industrial use

At what temperature do the gases in air start to liquefy?

  • -200°C
  • -150°C
  • -153.15°C (correct)
  • -100°C

What is one of the applications of cryogenics in the medical field?

  • Cryopreservation of organs
  • Surgery at low temperatures
  • Treatment of certain skin diseases, such as warts (correct)
  • Treatment of skin diseases

What is the result of suspending metabolism using cryogenics?

<p>Cells can be reactivated later (D)</p> Signup and view all the answers

What is one of the ways cryogenics is used in the food industry?

<p>Surgelation of food using liquid nitrogen (D)</p> Signup and view all the answers

What is the critical temperature below which a material becomes a superconductor?

<p>Very low temperatures, close to absolute zero (around -273.15°C) (D)</p> Signup and view all the answers

What happens to electrical resistance in a superconductor?

<p>It becomes zero suddenly (C)</p> Signup and view all the answers

What is the effect of superconductivity on magnetic fields?

<p>They are eliminated (D)</p> Signup and view all the answers

What is a potential application of superconductivity?

<p>Renewable energy storage (B)</p> Signup and view all the answers

What is cryogenics mainly concerned with?

<p>The production and effects of very low temperatures (A)</p> Signup and view all the answers

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