Physics · May / June 2018 · Paper 12 · Question 4

5054Physical quantities and measurement techniques

Micrometers, metre rules, tapes and calipers are used for measuring lengths. Which row identifies the most suitable device for accurately measuring the stated length?

A0.15 mm — micrometer
B0.50 mm — metre rule
C0.15 m — tape
D0.50 m — calipers

As printed in the paper

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Correct answer: A. 0.15 mm — micrometer

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