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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 main scale corresponds to 100   divisions on the circular scale. The diameter of the wire from the above data is:

Options

  1. A0 . 52   cm
  2. B0 . 026   cm
  3. C0 . 26   cm
  4. D0 . 052   cm

Correct answer

D. 0 . 052   cm

Step-by-step solution

L . C . = 1 100 m m = 0 . 01   mm Now, Diameter of wire = 52 × 0 . 01 = 0 . 52   mm = 0 . 052   cm

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