A screw gauge gives the following reading

Question:

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 :-

 

  1. $0.026 \mathrm{~cm}$

  2. $0.005 \mathrm{~cm}$

  3. $0.52 \mathrm{~cm}$

  4. $0.052 \mathrm{~cm}$


Correct Option: , 4

Solution:

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