in an experiment the angles are required to be using an instrument, `29` divisions of the
Channel: Doubtnut
Date: 2020-07-05

in an experiment the angles are required to be using an instrument, `29` divisions of the main scale exactly coincide with the `30` divisions of the vernier scale. If the sallest division of the main scale is half- a degree `(= 0.5^(@)`, then the least count of the instrument is :