'Cryogenics' is a science dealing with – (1) high temperatures (2) low temperatures (3) friction and wear (4) growth of crystals

'Cryogenics' is a science dealing with – (1) high temperatures (2) low temperatures (3) friction and wear (4) growth of crystals
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(2) low temperatures Explanation: Cryogenics is the study of how to get to low temperatures and of how materials behave when they get there. Besides the familiar temperature scales of Fahrenheit and Celsius (Centigrade), cryogenicists use other temperature scales, the Kelvin and Rankine temperature scales. One of the more modern processes being used to treat metals (as well as other materials) is cryogenic tempering.
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‘Cryogenics’ is a science dealing with (1) high temperatures (2) low temperatures (3) friction and wear (4) growth of crystals

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Last Answer : answer:

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