Cryogenics is a branch of Physics that deal with ______.
A) very high temperatures B) very low temperatures C) growth of extremely small crystals D) growth of extremely large crystals
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cryogenics is a branch of physics that deal with very high temperature
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Answer: B) Very low temperatures
Explanation: In physics, cryogenics is the production and behaviour of materials at very low temperatures. It is not well defined at what point on the temperature scale refrigeration ends and cryogenics begins, but scientists assume a gas to be cryogenic if it can be liquefied at or below −150 °C (123 K; −238 °F).
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