The least count of the main scale of a screw gauge is 1 mm. The minimum number of divisions on its circular scale required to measure 5 μm diameter of a wire is

The least count of the main scale of a screw gauge is 1 mm. The minimu

1.	The least count of the main scale of a screw gauge is 1 mm. The minimum number of divisions on its circular scale required to measure 5 μm diameter of a wire is
A.	50
B.	200
C.	500
D.	100
Answer» C. 500