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A wire fixed at the upper end stretches ...

A wire fixed at the upper end stretches by length l by applying a force F. The work done in stretching is

A

`(F)/(2l)`

B

`Fl`

C

`2Fl`

D

`(Fl)/(2)`

Text Solution

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The correct Answer is:
D
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ALLEN-ELASTICITY, SURFACE TENSION AND FLUID MECHANICS-Exercise 5 A (Previous year Questions)
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  12. A capillary tube (A) is dipped in water. Another identical tube (B) is...

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  13. A spherical solild of volume V is made of a material of density rho(1)...

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

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  15. A ball is made of a material of density rho where rho(oil)ltrholtrho(w...

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  16. Water is flowing continuously from a tap having an internal diameter 8...

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  19. if a ball of steel (density rho=7.8 g//cm^(3)) attains a terminal velo...

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