A vernier calliper has 20 division on the vernier scale which coincide with 19 division of the main scale. what is the vernier constant of the instrument if the main scale division is of 2 mm?
Text Solution
Verified by ExpertsThe correct answer is:
B
Step 1: Recall the formula
The Vernier Constant (V.C.) is the smallest measurement that can be read, and it is given by:
where:
MSD = Main scale division
VSD 
Vernier scale division
Step 2: Find the length of 1 Vernier scale division
We are told that:
So, 1 VSD is:
The main scale division (MSD) is 2 mm , so:
Step 3: Vernier constant
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