In the experiment to determine the galvanometer resistance by half-deflection method, the plot of 1 / θ vs the resistance ( R ) of the resistance box…

In the experiment to determine the galvanometer resistance by half-deflection method, the plot of $\displaystyle 1 / \theta$ vs the resistance ( R ) of the resistance box is shown in the figure. The figure of merit of the galvanometer is $\displaystyle \_\_\_\_$ $\displaystyle \times 10^{-1} \mathrm{~A} /$ division. [The source has emf 2V]