When a mass 'M' is attached to the spring of force constant 'K', then the spring stretches by 'l'. If the mass oscillates with amplitude 'l', what will be the maximum potential energy stored in the spring

When a mass 'M' is attached to the spring of force constant 'K', then

1.	When a mass 'M' is attached to the spring of force constant 'K', then the spring stretches by 'l'. If the mass oscillates with amplitude 'l', what will be the maximum potential energy stored in the spring
Answer» `(KL)/(2)` `2KL` `1/2` `MGL` ANSWER :D