Question

How to find least count of laboratory thermometer

Answer 1

Divide 1 cm into that much number of divisions; the value obtained is the least countof the main scale in cm. For example, if there are 10 divisions in one centimeter of the main scale its least count = 1/10 = 0.01 cm. Number of divisions on Vernier scale : In most Vernier calipers, the vernier scale has 10 divisions.