Which physical quantity is measured using a triple beam balance in the laboratory?

• A. Mass
• B. Volume
• C. Temperature
• D. Density

Answer: (A)

Verified step by step guidance

1. Understand the function of a triple beam balance: it is a mechanical device used to measure the amount of matter in an object.
2. Recall that mass is the measure of the amount of matter in an object, typically measured in grams or kilograms.
3. Recognize that volume is the amount of space an object occupies, which is measured using tools like a graduated cylinder or a volumetric flask, not a balance.
4. Note that temperature is a measure of thermal energy and is measured using thermometers, not balances.
5. Identify that density is a derived quantity calculated by dividing mass by volume, so it is not directly measured by a triple beam balance but requires mass and volume measurements.