Asked in PPSC, FPSC and other one-paper exams (compiled from unofficial resources).

Physics in Everyday LifeImportant Scientific Instruments

Which instrument is suitable for measuring the internal diameter of a test tube?

A.Measuring Tape
B.Screw Gauge
C.Meter Rod
D.Vernier CaliperCorrect answer

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Quick fact: The Vernier Caliper is the suitable instrument for measuring the internal diameter of a test tube because its internal jaws can accurately measure internal dimensions.

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Which instrument is suitable for measuring the internal diameter of a test tube?

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