A screw gauge gives the following reading when used to measure the diameter of a wire.Main scale reading : 0 mm.Circular scale reading : 52 divisionsGiven that 1 mm on main scale corresponds to 100 divisions of the circular scale.The diameter of wire from the above data is :
0.52 cm0.052 cm0.026 cm0.005 cm

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Solution

Here,
Least count of screw gauge=1/100 mm=0.01 mm
Diameter of wire=Divisions on circular scale x Least count + Main scale reading
So, d=52 x (1/100) +0
=0.52 mm or 0.052 cm

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Here, Least count of screw gauge=1/100 mm=0.01 mm Diameter of wire=Divisions on circular scale x Least count + Main scale reading So, d=52 x (1/100) +0 =0.52 mm or 0.052 cm

Here,
Least count of screw gauge=1/100 mm=0.01 mm
Diameter of wire=Divisions on circular scale x Least count + Main scale reading
So, d=52 x (1/100) +0
=0.52 mm or 0.052 cm