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One end of a light spring of spring cons...

One end of a light spring of spring constnat k is fixed to a wall and the other end is tied to a block placed on a smooth horizontal surface. In a displacement, the work done by the spring is `(1)/(2)kx^(2)`. The possible cases are
a) the spring was initially compressed by a distance x and was finally in its natural length
b) it was initially streched by a distance x and finally was in its natural length
c) it was initially in its natural length and finally in a compressed position
d) it was initially in its natural length and finally in a stretched position.

A

a, b are correct

B

b, c are correct

C

a, d are correct

D

b, d are correct

Text Solution

Verified by Experts

The correct Answer is:
A
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Knowledge Check

  • One end of a light spring of spring constant k is fixed to a wall and the other end is tied to a block placed on a smooth horizontal surface. In a displacement, the work done by the spring is (1)/(2) kx^(2) . The possible cases are (a) The spring was initially compressed by a distance x and was finally in its natural length (b) it was initially steched by a distance x and finally was in its natural length (c ) it was initially in its natural length adn finally in a compressed position. (d) it was initially in its natural length and finally in a stretched position.

    A
    a, b are correct
    B
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    C
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    D
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