_____________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C ?
Correct answer: C. Supermax
- A. Borosilicate
- B. High silica
- C. Supermax
- D. Lead
Explanation
Supermax glass is used for mercury-in-glass thermometers designed for temperatures around 500°C because it tolerates high temperature without excessive deformation. Ordinary lead glass lacks the required thermal resistance.
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