Question

Draw a neat labelled diagram of a vernier callipers. Name its main parts and state their functions.

  • Measurement Class 9 ICSE
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Answer

A neat labelled diagram of vernier callipers is shown below:

Draw a neat labelled diagram of a vernier callipers

The main parts of the vernier callipers are as follows —

Part Function
Outside jaws To measure the length of a rod, the diameter of a sphere, external diameter of a hollow cylinder.
Inside jaws To measure the internal diameter of a hollow cylinder or pipe.
Strip To measure the depth of a beaker or a bottle.
Main scale To measure length correct up to 1 mm.
Vernier scale Helps to measure length correct up to 0.1 mm.

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