The smallest division on main scale of a vernier caplliers is `1 mm and 10` vernier divisions
Channel: Doubtnut
Date: 2020-07-05

The smallest division on main scale of a vernier caplliers is `1 mm and 10` vernier divisions coincide with `9` main scale divisions. While measuring the length of a line, the zero mark of the vernier scale lies between `10.2 cm and 10.3 cm` and the third division of vernier scale coincides with a main scale division.  (a) Determine the least count of the callopers.  (b) Find the length of the line.