Question

a company is designing a vernier caliper in which 30 vernier scale divisions equals with 29 main scale divisions. during an inspection, by measuring a line through it the main scale reading was 56 mm and 25th division on the vernier scale coincided with the main scale division. calculate the least count of the vernier caliper.

Answer 1

Answer:

The least count of vernier caliper is 0.033 mm.

Explanation:

1 division on main scale = 1 millimeter

30 division on vernier scale = 29 division on main scale

1 division on vernier scale = $\frac{29}{30}$ division on main scale

Least count = 1 division on main scale - 1 division on vernier scale

Least count =  1 division on main scale - $\frac{29}{30}$ division on main scale

Least count = $\frac{30-29}{30}$

Least count = $\frac{1}{30}$

Least count = 0.033 millimeter

The least count of vernier caliper is 0.033 mm.