There are two idential springs of copper and steel. They are stretched by equal forces. For which spring more work will have to be done?

Two identical springs of copper and steel are equally strectched. On which more work will have to be done?

Two identical springs of copper and steel are equally strectched. On which more work will have to be done?

Identical spring of steel and copper are equally stretched. On which, more work will have to be done ?

Identical springs of steel and copper are equally stretched. On which, more work will have to be done??

Identical springs of steel and copper are equally stretched. On which more work will have to be done?

(i) Two identical rods, one of steel, the other of copper, are stretched by an identical amount. On which operation more work is expended? (ii) Two identical rods, one of steel, the other of copper, are stretched with equal force. On which operation is more work needed?

Two spring A and B are idential except that A is harder than B (k_(A)gtk_(B)) if these are stretched by the equal force. In which spring will more work be done ?

Identical springs of steel and copper are equally stretched. The spring on which more work is to be done is