Vernier caliper scales; main at top, vernier at bottom. It reads 3.58 ± 0.02 mm by adding 3.00 mm (left red mark) on the fixed main scale to vernier 0.58 mm (right red mark).
Can anybody tell me that what does +_0.02 mean here
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Answer:
+-2 is the zero error of the venier calliper you used. If its a positive error(+2) we have to subtract it from the vernier scale reading (VSR) else
we have to add it to VSR.
hope it helped you!
Explanation:
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