Question

How to calculate vernier caliper reading?

Answer 1

Answer:

See above

the upper scale is main scale

while lower is vernier scale

Firstly take out least count of a vernier caliper

Least Count (L.C) = 1 Main Scale Division (MSD) - 1 Vernier Scale Division (VSD)

Then find out the reading of main scale lying behind the least count of main scale

After that find the line in Vernier scale where main scale line coincides

Now, reading = MSR + Coinciding line (refer second image I circled it) × LC