Answer to Question #115312 in Mechanics | Relativity for Hh

Question #115312
The inner diameter of a test tube can be measured accurately using a
Expert's answer

Explanations & Answer

  • Sizes of test tubes vary 10 mm-20 mm in width & 50 mm-200 mm in length. (

  • From the several popular measuring instruments —meter ruler, Vernier caliper, micrometer screw guage, deviders etc — the Vernier caliper is the most suitable.

  • A measurement can easily be taken using the internal jaws of it while the accuracy could be increased by calculating an average value for a set of measurements taken at different locations.

  • To compensate the errors of a single vernier caliper, another one could be used along with it.

  • To compensate human errors in reading the measurements, a digital vernier caliper could be used.

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