A screw gauge gives the following reading when used to measure the diameter of a wire. Main scale reading : $0 \mathrm{~mm}$ Circular scale reading : 52 divisions Given that $1 \mathrm{~mm}$ on main scale corresponds to 100 divisions of the circular scale. The diameter of wire from the above date is :

• Correct answer
  A

  $0.052 \mathrm{~cm}$
• B

  $0.026 \mathrm{~cm}$
• C

  $0.005 \mathrm{~cm}$
• D

  $0.52 \mathrm{~cm}$

Hence, the correct answer is option: 'A'.