Question

3.
The vernier scale of a callipers has 50 divisions
which coincide with 49 main scale divisions. If
each main scale division is of 0.5 mm, then the
minimum inaccuracy in the measurement by
callipers is​

Answer 1

Answer:

We have

50 vsd =49 msd

Ans 1 msd = 0.5mm

So 1 vsd = 49/50*0.5

So accuracy is,, 1 msd - 1 vsd

0.5(1-49/50)

0.5*1/50

0.002

Answer 2

Answer:

The least count will be given below.

Least count = Value one main scale divison/Total no. Vernier scale division

=0.50/50= 0.01mm

Explanation: