In a Vernier calipers, when both jaws touch each other, zero of the Vernier scale is shifted to the right of zero

Question

In a Vernier calipers, when both jaws touch each other, zero of the Vernier scale is shifted to the right of zero of the main scale and 7th Vernier division coincides with a main scale reading. If the value of 1 main scale division is 1 mm and there are 10 Vernier scale divisions, then the Vernier caliper has [2026]

Smart Achievers · Accepted Answer

(3)

1 MSD = 1 mm

10 VSD = 9 MSD

LC = 1 MSD − 1 VSD = 0.1 MSD

⇒ LC = 0.1 mm = 0.01 cm

So error = 0 + 7LC = 0.07 cm +ve

Solution

1 0.07 cm negative zero error

2 0.7 cm negative zero error

3 0.07 cm positive zero error

4 0.7 cm positive zero error

Ans.
(3)

1 MSD = 1 mm

10 VSD = 9 MSD

LC = 1 MSD − 1 VSD = 0.1 MSD

⇒ LC = 0.1 mm = 0.01 cm

So error = 0 + 7LC = 0.07 cm +ve

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