- 1(current)
Q. No.| 1. | (stress)2 × strain | 2. | stress × strain |
| 3. | \(\dfrac12\) × stress × strain | 4. | stress × (strain)2 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhen a metal wire elongates by hanging a load on it, the gravitational potential energy is decreased.
| 1. | this energy completely appears as the increased kinetic energy of the block |
| 2. | this energy completely appears as the increased elastic potential energy of the wire |
| 3. | this energy completely appears as heat |
| 4. | none of these |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| 1. | \(10^{11}\) | 2. | \(10^{17}\) |
| 3. | \(10^{7}\) | 4. | \(10^{5}\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA wire of length \(L\) and cross-sectional area \(A\) is made of a material of Young's modulus \(Y.\) It is stretched by an amount \(x.\) The work done is:
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA \(5\) m long wire is fixed to the ceiling. A weight of \(10\) kg is hung at the lower end and is \(1\) m above the floor. The wire was elongated by \(1\) mm. The energy stored in the wire due to stretching is:
1. zero
2. \(0.05\) J
3. \(100\) J
4. \(500\) J
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
Q. No.
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