When a metal spring is elongated within its elastic limit
- work is done by the spring
- potential energy is stored in it
- its potential energy is lost
- its total energy remains constant
- its kinetic energy is increased
The Correct Option is A
Solution and Explanation
When a metal spring is elongated within its elastic limit, the spring stores potential energy. However, the nature of the work done depends on whether the spring is being stretched or compressed.
When the spring is stretched, work is done to deform it, and potential energy is stored in the spring. This energy is stored in the form of elastic potential energy. If the spring is subsequently allowed to return to its original length, the stored potential energy is converted back into work. This means that, during the stretching process, the spring is doing work to resist the deformation. Therefore, the correct statement is that work is done by the spring when it is elongated within its elastic limit, as the spring resists the applied force while storing potential energy.
Correct Answer:
Correct Answer: (A) Work is done by the spring
Top KEAM Physics Questions
- A body oscillates with SHM according to the equation (in SI units), $x = 5 cos \left(2\pi t +\frac{\pi}{4}\right) .$ Its instantaneous displacement at $t = 1$ second is
Kepler's second law (law of areas) of planetary motion leads to law of conservation of
- Two capillary tubes A and B of diameter $1\, mm$ and $2\, mm$ respectively are dipped vertically in a liquid. If the capillary rise in A is 6 cm, then the capillary rise in B is
- In the circuit given in figure, 1 and 2 are ammeters. Just after key K is pressed to complete the circuit, the reading will be
- A plate has a length $ 5\pm 0.1\text{ }cm $ and breadth $ 2\pm 0.01\text{ }cm $ . Then the area of the plate is:
Top KEAM The Potential Energy Of A Spring Questions
- A ball with $10^3J$ of kinetic.energy coflides with a.hodzontally mounted spring. If the maximum compression of the. spring is 50 cm, then the spring constatrt of the spring is
Two similar metallic rods of the same length \( l \) and area of cross section \( A \) are joined and maintained at temperatures \( T_1 \) and \( T_2 \) (\( T_1>T_2 \)) at one of their ends as shown in the figure. If their thermal conductivities are \( K \) and \( \frac{K}{2} \) respectively. The temperature at the joining point in the steady state is:
According to equipartition principle, the energy contributed by each translational degree of freedom and rotational degree of freedom at a temperature T are respectively (\( k_B = \text{Boltzmann constant} \)):
- The kinetic energy of 3 moles of a diatomic gas molecules in a container at a temperature \( T \) is same as that of kinetic energy of \( n \) moles of monoatomic gas molecules in another container at the same temperature \( T \). The value of \( n \) is:
- A string of length \( L \) is fixed at both ends and vibrates in its fundamental mode. If the speed of waves on the string is \( v \), then the angular wave number of the standing wave is:
Top KEAM Questions
- i.$\quad$ They help in respiration ii.$\quad$ They help in cell wall formation iii.$\quad$ They help in DNA replication iv. $\quad$They increase surface area of plasma membrane Which of the following prokaryotic structures has all the above roles?
- A body oscillates with SHM according to the equation (in SI units), $x = 5 cos \left(2\pi t +\frac{\pi}{4}\right) .$ Its instantaneous displacement at $t = 1$ second is
- The pH of a solution obtained by mixing 60 mL of 0.1 M BaOH solution at 40m of 0.15m HCI solution is
Kepler's second law (law of areas) of planetary motion leads to law of conservation of
- If $\int e^{2x}f' \left(x\right)dx =g \left(x\right)$, then $ \int\left(e^{2x}f\left(x\right) + e^{2x} f' \left(x\right)\right)dx =$