- 1(current)
Q. No.The amount of elastic potential energy per unit volume (in SI unit) of a steel wire of length \(100\) cm to stretch it by \(1\) mm is: (Given: Young's modulus of the wire = \(2.0\times 10^{11}\) Nm-2)
| 1. | \(10^{11}\) | 2. | \(10^{17}\) |
| 3. | \(10^{7}\) | 4. | \(10^{5}\) |
Subtopic: Potential energy of wire |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhen a block of mass \(M\) is suspended by a long wire of length \(L\), the length of the wire becomes (\(L+l\)). The elastic potential energy stored in the extended wire is:
1. \({1}/{2}~MgL\)
2. \(Mgl\)
3. \(MgL\)
4. \({1}/{2}~Mgl\)
Subtopic: Potential energy of wire |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
Q. No.
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