A metal wire length L, cross section area A, and Young’s modulus Y is stretched by a…
Physics · JEE Advanced · NTA Exams — Properties of Solids and Liquids
A metal wire length L, cross section area A, and Young’s modulus Y is stretched by a variable force F. F is varying in such a way that F is always slightly greater than the elastic forces of resistance in the wire. When the elongation in the wire is l, up to this instant
- the work done by F is \(\frac{\mathrm{YA} \ell^{2}}{2 \mathrm{~L}}\)
- the work done by F is \(\frac{\mathrm{YA} \ell^{2}}{\mathrm{~L}}\)
- the elasitc potential energy stored in wire is \(\frac{\mathrm{YA} \ell^{2}}{2 \mathrm{~L}}\)
- no energy is lost during elongation
Answer
(C) the elasitc potential energy stored in wire is YA ^ 2 2 ~L
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- A composite block is made of slabs A, B, C, D and E of different thermal conductivities (given in terms of a…
- A solid sphere of radius R, made up of a material of bulk modulus K is surrounded by a liquid in a…
- Statement I : To float, a body must displace liquid whose weight is greater than the actual weight of the…
- A uniform rod of length L has a mass per unit length λ and area of cross section A. The elongation in the rod…
- A ball is made of a material of density ρ where ρ oil water with ρ oil and ρ water representing the densities…
- If the container filled with liquid gets accelerated horizontally or vertically, pressure in liquids gets…
- In the diagram shown, the difference in the two tubes of the manometer is 5 cm, the cross section of the tube…
- If the container filled with liquid gets accelerated horizontally or vertically, pressure in liquids gets…
More Properties of Solids and Liquids questions · Browse all practice questions