Question : An instrument for measuring the hardness of substances is called
Option 1: Lucimeter
Option 2: Keraunograph
Option 3: Durometer
Option 4: Hygrometer
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Correct Answer: Durometer
Solution : The correct option is the Durometer .
In the case of polymers most often, a durometer is a tool used to gauge a material's hardness. Tougher materials with better indentation resistance are indicated on the scale by higher numbers. Lower values signify materials that are softer and less resistant.
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