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A vernier calipers has 1mm marks on the ...

A vernier calipers has `1mm `marks on the main scale. It has `20` equal divisions on the Verier scale which match with `16` main scale divisions. For this Vernier calipers, the least count is

A

0.02 mm

B

0.05 mm

C

0.1 mm

D

0.2 mm

Text Solution

Verified by Experts

The correct Answer is:
d
`16 MSD=20 VSD`
`1 VSD=4//5 MSD`
`LC=1 MSD - 1VSD`
`=(1-4/5) MSD=(1-4/5) (1 mm)=0.2 mm`
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