Student A and Student B used two screw gauges of equal pitch and 100 equal circular divisions to measure the radius of a given wire. The actual value…

Student A and Student B used two screw gauges of equal pitch and $\displaystyle 100$ equal circular divisions to measure the radius of a given wire. The actual value of the radius of the wire is $\displaystyle 0.322$ cm. The absolute value of the difference between the final circular scale readings observed by the students A and B is \_\_\_\_. [Figure shows position of reference ' $\displaystyle O$ ' when jaws of screw gauge are closed] Given pitch $\displaystyle =0.1 \mathrm{~cm}$.