- 1(current)
Q. No.Given below are two statements:
| Statement I: | Elastic energy density is proportional to the product of the stress & the strain. |
| Statement II: | Hooke's law is valid only if the applied stress does not exceed the proportional limit. |
| 1. | Statement I is incorrect and Statement II is correct. |
| 2. | Both Statement I and Statement II are correct. |
| 3. | Both Statement I and Statement II are incorrect. |
| 4. | Statement I is correct and Statement II is incorrect. |
Subtopic: Â Hooke's Law |
 84%
Level 1: 80%+
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Hints
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Given below are two statements:
| Statement I: | Stress is proportional to the strain, within elastic limit (Hooke's law limit). |
| Statement II: | The energy stored locally in an elastic body, when it is under stress (within Hooke's law limit), is proportional to the product of the stress and the strain. |
| 1. | Statement I is incorrect and Statement II is correct. |
| 2. | Both Statement I and Statement II are correct. |
| 3. | Both Statement I and Statement II are incorrect. |
| 4. | Statement I is correct and Statement II is incorrect. |
Subtopic: Â Hooke's Law |
 77%
Level 2: 60%+
Hints
The Young's modulus of a wire of length L and radius r is Y. If length is reduced to and radius to , then Young's modulus will be:
1.
2. Y
3. 2Y
4. 4Y
Subtopic: Â Elasticity |Â Stress - Strain |Â Hooke's Law |
 88%
Level 1: 80%+
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- 1(current)
Q. No.
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