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Vernier Caliper

The zero erro...

Question

The zero error of a vernier is +1. Its zero correction is (take L.C $=$ 0.01 cm)

A

0.2 cm

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B

-0.2 cm

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C

-0.02 cm

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D

+0.02 cm

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Solution

The correct option is C -0.02 cm
Correction $= - [L . C \times 2] c m$
$= - [0.01 \times 2] c m$
$= - 0.02 c m$

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