2018 CAIE AS & A level October November Physics Paper 12 Q N 21 (9702/12/O/N/18) by Sajit C Shakya

2018 CAIE AS & A level October November Physics Paper 12 Q. No. 21 (9702/12/O/N/18) by Sajit Chandra Shakya from Nepal Chapter - PROPERTIES OF MATTER A wire has both elastic and plastic properties. When it is slowly loaded, its extension varies with load as shown by line OXY. The removal of the load is represented by line YZ. This creates areas P, Q and R on the graph. Which area represents the maximum elastic potential energy stored in the wire?