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Standard IX

Physics

Vernier Caliper

In a Vernier ...

Question

In a Vernier callipers having 10 VSD, the Vernier constant is 0.1 mm. When the jaws are closed, zero of Vernier lies to the left of zero of main and 7th VSD coincides with a main scale division. When a cylinder is placed between the jaws of main scale reading was 7.7 cm and Vernier scale read 8 divisions. On the bases of above information answer the following question.

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Solution

The correct option is B A
A

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Similar questions

Q. The main scale of a vernier callipers reads 10 mm in 10 divisions of Vernier scale coincide with 9 divisions of the main scale. When a cylinder is tightly placed between the two jaws, the zero of vernier scale lies slightly behind 3.2 cm and the fourth vernier division coincides with a main scale division. The diameter of the cylinder is :

Q. A vernier caliper has no zero error, one main scale division =

1 mm

and

9

main scale division =

10

vernier scale divisions. A spring is held between jaws without exerting force on jaws. Main scale reading is

3.4 cm

, and 5th vernier scale division coincides with a main scale division. When jaws are pressed by force of

10 N

on both sides, main scale reading remains

3.4 cm

, but 1st division of vernier scale coincides with a main scale division. Now spring is removed, cut into two pieces and when inserted between jaws without any force, main scale reading =

1.1 cm

and 5th vernier scale division coincides with a main scale. If we apply force of

30 N

on both the jaws, main scale reading gets

1.0 cm

and

x

vernier scale division coincides with a main scale division. Find

^{'} x^{'}

Q. The least count of the main scale of a vernier callipers is

1 mm

. Its vernier scale is divided into

10

divisions and coincide with

9

divisions of the main scale. When jaws are touching each other, the

7^{th}

division of vernier scale coincides with a division of main scale and the zero of vernier scale is lying right side of the zero of main scale. When this vernier is used to measure length of a cylinder the zero of the vernier scale between

3.1 cm

and

3.2 cm

and

4^{th} VSD

coincides with a main scale division. The length of the cylinder is

(VSD

is vernier scale division

)

A vernier callipers has its main scale graduated in mm and 10 divisions on its vernier scale are equal in length to 9 mm. When the two jaws are in contact, the zero of vernier scale is ahead of zero of main scale and 3rd division of vernier scale coincides with a main scale division. Find : (i) the least count and (ii) the zero error of the vernier callipers.

Q. A vernier callipers has its main scale graduated in mm and 10 divisions on its vernier scale are equal in length to 9 mm. When the two jaws are in contact. the zero of vernier scale is ahead of zero of main scale and 3rd division of vernier scale coincides with a main scale division. The zero error of the vernier callipers is

3 \times 10^{- x} c m

. Find the value of x.

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The correct option is B AA

The correct option is B A
A