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5/12 MCQs for:
Experimental physics
Vernier calipers, reading to 0.1 mm, are used to find the internal diameter (10.0 ± 0.1 mm) and the external diameter (12.0 ± 0.1 mm) of a length of glass tubing. The mean wall thickness would be quoted, therefore, as

Four students measure the mass of an object, each using a different scale. They record their results as follows: Which student used the most precise scale?

What is the reading shown on this milliammeter?

Which of the following experimental techniques reduces the systematic error of the quantity being investigated?
Is a temperature of 30o C warm or cold to man?