When A Mass M Is Attached To The Spring Of Force Constant K Then The Spring Stretches By?

When A Mass M Is Attached To The Spring Of Force Constant K Then The Spring Stretches By? When the spring oscillates at maximum displacement then additional potential energy stored =12kl2=12mgl. Thus total potential energy =12mgl+12mgl=mgl. Correct choice is (d). When a mass M is attached to the spring of force constant k then the