Question

 A spring is compressed. The potential energy of a stretched spring 

(i) remains unchanged

(ii) increases

(iii) decreases

(iv) becomes zero

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Answer 1

Answer:

increase

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Answer 2

Explanation:

Solution : When a spring is compressed or stretched, potential energy energy of the spring increases in both the cases. This is because work is done by us in compression as well as stretching.

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