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The youngs modulus of the material of a ...

The youngs modulus of the material of a rod is `20xx10^10` pascal. When the longitudinal strain is 0.04%, The energy stored per unit volume is

A

`4 xx 10^(-3) J//m^3`

B

`8 xx 10^3 J//m^3`

C

`16 xx 10^(-3) J//m^3`

D

`16 xx 10^3 J//m^3`

Text Solution

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The correct Answer is:
D
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AAKASH SERIES-MECHANICAL PROPERTIES OF SOLIDS-EXERCISE - 2 (STRAIN ENERGY )
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  2. A cable breaks if stretched by more than 2mm. It is cut into two equal...

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  3. The breaking stress of steel is 7.9xx10^9 Nm^(-2) and density of steel...

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  4. A metal rod of Young's modulus 2 xx 10^10 Nm^(-2) undergoes an elas...

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  5. A metal wire of length 2.5m and area of cross section 1.5xx10^(-6) m^2...

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  6. A brass rod has length 0.2m area of cross section 1.0cm^2 and Young's ...

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  7. A steel wire of length 1.5 m and area of cross section 1.5mm^2 is str...

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  8. When a steel rod of length 2m is compressed its length decreases by 0....

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  9. The youngs modulus of the material of a rod is 20xx10^10 pascal. When...

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  10. Two wires of same radius and length are subjected to the same load. On...

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  11. A spring of force constant 800N/m has an extension of 5cm. The work do...

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  12. Two wires of the same material and length but diameters in the ratio 1...

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  13. The Young's modulus and rigidity modulus of a metal are 40 GPa and 20 ...

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  14. For a given material, young's modulus is 2.6 times the rigidity modulu...

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  15. The Young's modulus of steal is 210 GPa. Its poissions ratio is 0.3. T...

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  16. For a given material the Youngs modulus is 2.4 times that of its rigid...

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