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(A): A spring has potential energy, both...

(A): A spring has potential energy, both when it is compressed or stretched.
(R) : In compressing or stretching, work is done on the spring against the restoring force.

A

Both (A) and (R ) are true and (R ) is the correct explanation of (A)

B

Both (A) and (R ) are true and (R ) is not the correct explanation of (A)

C

(A) is true but (R ) is false

D

(A) is false and (R ) is false

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • (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.

    A
    Both (A) and (R) are true and (R) is the correct explanation of (A)
    B
    Both (A) and (R) are true and (R) is not the correct explanation of (A)
    C
    (A) is true but (R) is false
    D
    Both (A) and (R) are false

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    A
    4 U
    B
    U
    C
    2 U
    D
    3 U

  • A spiral spring is stretched by a force the resultant strain produced in the spring is

    A
    Volume strain
    B
    Shearing strain
    C
    Tensile strain
    D
    None of the above

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