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If S is stress and Y is Young's modulus ...

If S is stress and Y is Young's modulus of material of a wire, the energy stored in the wire per unit volume is

A

`2S^(2)Y`

B

`(S^(2))/(2Y)`

C

`(2Y)/(S^(2))`

D

`(S)/(2Y)`

Text Solution

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The correct Answer is:
B
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ALLEN-ELASTICITY, SURFACE TENSION AND FLUID MECHANICS-Exercise 5 A (Previous year Questions)
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  2. A wire fixed at the upper end stretches by length l by applying a forc...

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  3. If S is stress and Y is Young's modulus of material of a wire, the ene...

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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. A cylinder of height 20 m is completely filled with water. The velocit...

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  7. If two soap bubbles of different radii are connected by a tube

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  8. A 20 cm long capillary tube is dipped in water. The water rises up to ...

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  9. If the terminal speed of a sphere of gold (of density 19.5 g//cm ^3 ) ...

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  10. A spherical solid ball of volume V is made of a material of density rh...

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  11. A jar filled with two non mixing liquids 1 and 2 having densities rho(...

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  12. A capillary tube (I) is dipped in water. Another identical tube (II) ...

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  13. A spherical solid ball of volume V is made of a material of density rh...

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

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  15. A ball is made of a material of density rho where rho(oil) lt rho lt r...

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

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  17. Work done in increasing the size of a soap bubble from a radius of 3 c...

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  18. Two mercury drops each of radius r merge to form a bigger drop. Calcul...

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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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  20. A thin liquid film formed between a U-shaped wire and a light slider s...

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