The least count of a vernier scale is_______.

A)
value of one division of the primary scale divided by total number of divisions of vernier scale
B)
sum of the smallest divisions of main and vernier scales
C)
value of one division of vernier scale divided by total number of divisions of primary scale
D)
None of the above

Correct Answer :   value of one division of the primary scale divided by total number of divisions of vernier scale