King12491 King12491 29-04-2024 Physics Answered When the circular scale of a screw gauge completes 2 rotations , it covers 1 mm over the pitch scale . The total number of the circular scale divisions is 50.The least count of the screw gauge in metre is?A.10⁻⁵B.10⁻⁴C.10⁻³D.10⁻²