Sudden temperature fluctuation does not affect pyrex glass, because of its __________________?
Correct answer: A. Low co-efficient of expansion
- A. Low co-efficient of expansion
- B. High co-efficient of expansion
- C. High melting point
- D. Both B. and (C)
Explanation
Pyrex contains borosilicate glass, whose low coefficient of thermal expansion produces only small dimensional changes during sudden heating or cooling. Its high melting point is not the main reason for thermal-shock resistance.
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