EXPERIMENT : 1(a)
To measure the diameter of a small spherical/cylindrical body using a vernier calliper
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keep the body in the vernier scale and note the main scale reading
the least count of vernier calliper is 0.01cm
note the line of the vernier scale coinciding with the main scale and it is treated as the point of coincidence.
vernier scale reading =point of coincidence×least count
total reading= main scale reading +vernier scale reading
take many observation and take its mean value and that value will be the diameter of the body.
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