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Select the correct alternative(s)....

Select the correct alternative(s).

A

Elastic forces are not always conservative

B

Elastic forces are always conservative

C

Elastic forces are conservative only when Hooke's law is obeyed

D

Elastic forces are not conservative

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AAKASH INSTITUTE-MECHANICAL PROPERTIES OF SOLIDS-Assignment(Section-A)
  1. The elastic limit of stees is 8xx10^8Nm^-2 andits Young modulus 2x10^1...

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  2. As shown in figure, by combining together copper and steel wires of sa...

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  3. Select the correct alternative(s).

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  4. A metallic rod of length l and cross-sectional area A is made of a mat...

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  5. The Poisson’s ratio of a material is 0.5. If a force is applied to a w...

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  6. The load versus elongation graph for four wires of the same material i...

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  7. A uniform heavy rod of weight W, cross sectional area a and length L i...

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  8. If in case A, elongation in wire of length L is t then for same wire e...

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  9. In the given figure, if the dimensions of the two wires are same but m...

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  10. If the Bulk modulus of lead is 8.0xx10^(9)N//m^(2) and the initial den...

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  11. Two wires A and B of same material have radii in the ratio 2:1 and le...

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  12. For a given material, the Young's modulus is 2.4 times its modulus of ...

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  13. When the temperature of a gas is 20^(@)C and pressure is changed from ...

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  14. The stress versus strain graphs for wires of two materials A and B are...

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  15. Hooke's law is applicable for

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  16. The length of wire, when M(1) is hung from it, is l(1) and is l(2) wit...

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  17. When a load of 10 kg is suspended on a metallic wire, its length incre...

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  18. A rod of length / and radius r is held between two rigid walls so that...

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  19. If the temperature of a wire of length 2 m and area of cross-section 1...

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  20. The energy stored per unit volume of a strained wire is

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