The refractive index measures how much light bends or slows down as it enters a medium. It is crucial in forensic glass analysis to compare refractive properties of glass fragments at crime scenes.
A thermodynamic system is taken through the cyclic process \(ABC\) as shown in the \(P\!-\!V\) diagram. The total work done by the system during the cycle \(ABC\) is _______ J. 
Given: The area enclosed by the cycle in the \(P\!-\!V\) diagram represents the work done.