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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

Text Solution

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The correct Answer is:
A
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AAKASH INSTITUTE-MECHANICAL PROPERTIES OF SOLIDS-Assignment (SECTION - A)
  1. A wire of length L and cross-sectional area A is made of material of Y...

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  2. A spherical ball contracts in volume by 0.01% when subjected to a norm...

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  3. What is the percentage increase in length of a wire of diameter 2.5 mm...

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  4. Two exactly similar wires of steel and copper are stretched by equal f...

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  5. Which of the following is the graph showing stress-strain variation f...

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  6. A steel rod has a radius 10 mm and a length of 1.0 m. A force stretch...

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  7. Two wires of equal length and cross sectional area suspended as shown ...

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  8. When a wire is stretched to double its length, then

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  9. Select the correct alternative (s)

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  10. A metallic rod of length l and cross - sectional area A is made of a m...

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  11. The Poisson's ratio of a material is 0.5. If a force is applied to a w...

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  12. The load versus extension graph for four wires of same material is sh...

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  13. A uniform cylindrical rod of length L, cross-section area A and Young'...

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  14. One end of a wire of length L and weight w is attached rigidly to a po...

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  15. In the given Fig. 7(CF).2, if the dimensions of the two wires are the ...

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

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

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  18. For a given material, Young's modulus is 2.4 times that of rigidity mo...

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

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

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