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A vernier callipers has 20 divisions on ...

A vernier callipers has 20 divisions on the vernier scale which coincide with 19 divisions on the main scale. The least count of the instrument is 0.1 mm. The main scale divisions are of

A

`0.5mm`

B

1 mm

C

2 mm

D

`1//4` mm

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The correct Answer is:
C
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