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A vernier callipers has 20 divisions on ...

A vernier callipers has `20` divisions on the vernier scale which coincides with `19mm` on the main scale. Its least count is

A

`0.5mm`

B

`1mm`

C

`0.05mm`

D

`(1)/(4)mm`

Text Solution

Verified by Experts

The correct Answer is:
C
`LC=1-(19)/(20)`
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