Question

20 vernier divisions are equal to 10 main scale division of an instrument of vernier constant 0.1 mm. What is the length of its smallest main scale division?​

Answer 1

Hey there!

Given,

20 vernier scale divisions = 10 main scale divisions

And, vernier constant = 0.1 mm

Or, Least count = 0.1 mm or 0.01 cm

So, smallest distance that can be measured by main scale = 20 / 10 = 0.1 mm

or, 1 cm.

Hope It Helps You!