Question

Formula for least count?

Answer 1

Divide 1 cm into that much number of divisions; the value obtained is the least count of the main scale in cm. For example, if there are 10 divisions in one centimeter of the main scale its least count = 1/10 = 0.1 cm. Number of divisions on Vernier scale: In most Vernier calipers, the Vernier scale has 10 divisions.