21Elasticity Hookes Law Young ModulusMedium1 markThe graph shows the variation of force with extension for a metal object deformed within its limit of proportionality.What does the shaded area represent?Athe elastic limit of the objectBthe elastic potential energy stored in the object at an extension of PCthe spring constant of the objectDthe Young modulus of the metal at an extension of PGrade answerSolutionGrading criteria