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Which of the following statements is cor...

Which of the following statements is correct:

A

Hooke's law is applicable only within elastic limit`

B

The adiabatic and isothermal elastic constants of a gas are equal

C

Young's modulus is dimensionless

D

Stress multiplied by strain is equal to the stored energy

Text Solution

Verified by Experts

The correct Answer is:
A
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MOTION-ELASTICITY-EXERCISE -3
  1. A wire of length L and radius a rigidlyl fixed at one end. On stretchi...

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  2. In steel, the Young's modulus and the strain at the breaking point are...

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  3. Which of the following statements is correct:

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  4. Which one of the following substances possesses the highest elasticity...

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  5. Two wires of the same material have lengths in the ratio 1:2 and their...

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  6. When a weight of 10 kg is suspended from a copper wire of length 3 met...

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  7. When a force is applied on a wire of uniform cross-sectional area 3xx1...

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  8. A force of 10^3 newton, stretches the length of a hanging wire by 1 mi...

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  9. A wire of cross-sectional area 3 mm^(2) is first stretched between two...

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  10. For steel the breaking stressis 6xx10^(6)N//m^(2) and the density is 8...

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  11. The units of modulus of rigidity are

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  12. A 2m long rod of radius 1 cm which is fixed from one end is given a tw...

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  13. A ball falling in a lake of depth 200 m shows 0.1% decrease in its vol...

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  14. An iron wire of length 4 m and diameter 2 mm is loaded with a weight o...

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  15. The dimensional formula for young's modulus is

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  16. A fixed volume of iron is drawn into a wire of length l. The extension...

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  17. A mass of 0.5 kg is suspended from wiere, then length of wire increase...

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  18. If the strain in a wire is not more than 1//1000 and Y =2xx10^(11)N//m...

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  19. A wire of length L and radius r is fixed at one end. When a stretching...

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  20. How much force is required to produce an increase of 0.2 % in the leng...

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