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When is a vernier Callipers said to be free from zero error?
What is meant by zero error of vernier callipers ? How is it determined? Draw neat diagrams to explain it. How is it taken in account to get the correct measurement?
Name the part of the vernier callipers which is used to measure the following
Internal diameter of a mug
When does a vernier callipers has the positive error?
The Wavelength of a particular colour is 5400Å. Express it in nanometer and metre.
State whether the following statement is true or false by writing T/F against it.
The diameter of a wire can be measured more accurately by using vernier calipers than by a screw gauge.
State whether the following statement is true or false by writing T/F against it.
The least count of a screw gauge can be lowered by increasing the number of divisions on its thimble.
What is the least count in the case of the following instrument?
Stopwatch
The following diagrams (Fig. 5) show the use of a vernier caliper under three different situations. Study the diagrams carefully and note down the vernier readings in each case.
(a) Measuring the diameter of the rod
(b) Measuring Internal diameter of a cavity
(c) Measuring depth of a cavity
