Question

A vernier calliper has its 1 division on main scale equal to 0.5mm. It has 20 divisions on vernier scale. Find Least count​

Answer 1

Answer:

It will be 10.0

least count =10

Answer 2

A Vernier caliper has 20 divisions on the Vernier scale, which coincide with 19 on the main scale. The least count of the instrument is 0.1 mm.

Also, the least count in the main scale is:

0,1 = (1 - 19/20) MSD = 1/10 = 1/20 x MSD

1 MSD = 0.1×20=2 mm