A screw gauge gives the following readings when used to measure the diameter of a wire. Main scale reading: 0 mm. Circular scale reading: 52 divisions. Given that 1 mm on the main scale corresponds to 100 divisions on the circular scale, the diameter of the wire from the above data is

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(4) 0.052 cm. Given: main scale =0 mm, circular scale =52 divisions, 1 mm=100 circular divisions. L.C.=1/(100)=0.01 mm d=0+52×0.01=0.52 mm d=0.052 cm

A screw gauge gives the following readings when used to measure the diameter of a wire. Main scale reading: 0 mm. Circular scale reading: 52 divisions. Given that 1 mm on the main scale corresponds to 100 divisions on the circular scale, the diameter of the wire from the above data is

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Why the other options are wrong