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?

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

Two identical springs X and Y are compressed by the same amount. If X is stiffier than Y, in which spring more work has 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 springs A and B are identical to each other . The spring A is harder than the spring B . On which spring more work will be done if they are stretched by same force ?

Two springs A and B are identical to each other . The spring A is harder than the spring B . On which spring more work will be done if they are streched by same force ?

Which type of strain is three, when a spiral spring is stretched by a force?

Assertion : identical springs of steel and copper are equally stretched. More work will be done on the steel spring. Reason : Steel is more elastic than copper.

Assertion : Identical springs of steel and copper are equally stretched. More work will be done on the steel spring. Reason : Steel is more elastic than copper