Q.

Statement I : Potential energy of a spring increases when it is stretched and decreases when it is compressed.

Statement II : In compressing or stretching a spring, work done on it against the restoring force.

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a

If both statement I and statement II are false.

b

If both statement I and statement II are true and the statement II is the correct explanation of statement I

c

If both statement I and statement II are true but the statement II is not the correct explanation of statement I

d

If statement I is false but statement II is true.

answer is C.

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Detailed Solution

Work done on the spring is stored in the spring in the form of potential energy as restoring force is always opposite to applied force.

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Statement I : Potential energy of a spring increases when it is stretched and decreases when it is compressed.Statement II : In compressing or stretching a spring, work done on it against the restoring force.