1.

(A): The elastic potential energy of spring increases when it is elongated and decreases when it is compressed.(R) : Work done on a spring is independent of the force constant of the spring.

Answer»

Both (A) and (R) are TRUE and (R) is the CORRECT explanation of (A)
Both (A) and (R) are true and (R) is not the correct explanation of (A)
(A) is true but (R) is false
Both (A) and (R) are false

Answer :D


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