268837 A spring of force constant\(800 \mathrm{Nm}^{-1}\) is stretched initially by \(5 \mathrm{~cm}\). The work done in stretching from \(5 \mathrm{~cm}\) to \(15 \mathrm{~cm}\) is

268838 When a spring is compressed by a distance '\(x\) ', the potential energy stored is \(U_{1}\). It is further compressed by a distance ' \(2 x\) ', the increase in potential energy is \(U_{2}\). The ratio of \(U_{1}: U_{2}\) is

268839 A massless spring with a force constant\(\mathrm{K}=40 \mathrm{~N} / \mathrm{m}\) hangs vertically from the ceiling. A \(0.2 \mathrm{~kg}\) block is attached to the end of the spring and held in such a position that the spring has its natural length and suddenly released.The maximum elastic strain energy stored in the spring is \(\left(g=10 \mathrm{~m} / \mathbf{s}^{2}\right)\)

268837 A spring of force constant\(800 \mathrm{Nm}^{-1}\) is stretched initially by \(5 \mathrm{~cm}\). The work done in stretching from \(5 \mathrm{~cm}\) to \(15 \mathrm{~cm}\) is

268838 When a spring is compressed by a distance '\(x\) ', the potential energy stored is \(U_{1}\). It is further compressed by a distance ' \(2 x\) ', the increase in potential energy is \(U_{2}\). The ratio of \(U_{1}: U_{2}\) is

268839 A massless spring with a force constant\(\mathrm{K}=40 \mathrm{~N} / \mathrm{m}\) hangs vertically from the ceiling. A \(0.2 \mathrm{~kg}\) block is attached to the end of the spring and held in such a position that the spring has its natural length and suddenly released.The maximum elastic strain energy stored in the spring is \(\left(g=10 \mathrm{~m} / \mathbf{s}^{2}\right)\)

268837 A spring of force constant\(800 \mathrm{Nm}^{-1}\) is stretched initially by \(5 \mathrm{~cm}\). The work done in stretching from \(5 \mathrm{~cm}\) to \(15 \mathrm{~cm}\) is

268838 When a spring is compressed by a distance '\(x\) ', the potential energy stored is \(U_{1}\). It is further compressed by a distance ' \(2 x\) ', the increase in potential energy is \(U_{2}\). The ratio of \(U_{1}: U_{2}\) is

268839 A massless spring with a force constant\(\mathrm{K}=40 \mathrm{~N} / \mathrm{m}\) hangs vertically from the ceiling. A \(0.2 \mathrm{~kg}\) block is attached to the end of the spring and held in such a position that the spring has its natural length and suddenly released.The maximum elastic strain energy stored in the spring is \(\left(g=10 \mathrm{~m} / \mathbf{s}^{2}\right)\)