What is the most accurate and precise method to measure the internal diameter of a small test tube?
Use a micrometer screw gauge.
Use the internal jaws of a vernier caliper.
Use a ruler lined up with the tube's opening.
Use a measuring cylinder to find the volume of the tube.
164 exam-style questions on CIE IGCSE Physics Physical quantities and measurement techniques, covering Physical quantities and measurement techniques. Each one has a worked solution and a mark scheme showing where the marks go.