The spring extends by x on loading, then energy stored by the spring is : (if T is the tension in spring and k is spring constant) 

(1) T22k

(2) T22k2

(3) 2kT2

(4) 2T2k

Concept Videos :-

#6 | Solved Problems on Potential Energy
#7 | Mechanical Energy

Concept Questions :-

Elastic potential energy
Explanation is a part of a Paid Course. To view Explanation Please buy the course.

Difficulty Level: