Question

there are three spring balance A B and C with least count 2 gram 0.2 gram and one gram respectively the mass of the object of 0.6 Gram has to be measured using any one of the three spring balance which one of the above can be selected for accurate measurement

Answer 1

B should be selected for accurate measurement because it's least count is 0.2

Answer 2

0.2 g LC spring balance will give correct measure