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A wire suspended vertically from one of the its ends is stretched by attaching a weight of 200 N to the lower end. The weight stretches the wire by 1 mm. then the elastic energy stored in the wire is

A

0.2 J

B

10 J

C

20 J

D

0.1 J

Text Solution

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The correct Answer is:
D
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MOTION-ELASTICITY AND THERMAL EXPANSION-Exercise - 4 (Level-I)
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  4. A wire elongates by l mm when a load W is hanged from it. If the wire ...

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  5. Two wires are made of the same material and have the same volume. Howe...

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  9. A sonometer wire of length 1.5m is made of steel. The tension in it pr...

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  10. The pressure that has to be applied to the ends of a steel wire of len...

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  11. A pendulumd made of a uniform wire of cross sectional area (A) has tim...

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  12. A pendulum clock loses 12s a day if the temperature is 40^@C and gains...

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  14. An external pressure P is applied on a cube at 0^(@)C so that it is eq...

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