Co-efficient of thermal expansion is highest for_____________?
Correct answer: B. Acrylic resin
- A. Amalgam
- B. Acrylic resin
- C. Gold alloy
- D. Silicate cement
Explanation
Acrylic resin has the highest coefficient of thermal expansion among these materials, so it undergoes the greatest dimensional change with temperature. Gold alloys, amalgam, and silicate cement have substantially lower values.
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