Question

If 25th division of vernier scale coincides with 20th division of main scale, then the least count of vernier calliper is (take 1 msd = 1 mm)

Answer 1

Explanation:

25 VSD=20MSD

VSD= (20/25)MSD

VSD=(4/5)MSD

least count= 1MSD- 1VSD

1-(4/5)

1/5 mm