MCQ
There will be decrease in potential energy of the system, if work is done upon the system by
- AAny conservative or non-conservative force
- BA non-conservative force
- ✓A conservative force
- DNone of the above
✓
Answer
Correct option: C.
A conservative force
c
(c) Potential energy will increase when work is done by the system against a conservative force.
(c) Potential energy will increase when work is done by the system against a conservative force.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A tank is filled by liquid of density $\rho$ upto height $H$. The average pressure on the walls of container is .....
→Angular momentum of a single particle moving with constant speed along circular path:
A projectile crosses two walls of equal height $H$ symmetrically as shown The maximum height of the projectile is ........ $m$
→The $P-V$ graph of an ideal gas cycle is shown here as below. The adiabatic process is described by
→If position time graph of a particle is sine curve as shown, what will be its velocity-time graph.
Ice in a freezer is at $-7^{\circ} C .100 \,g$ of this ice is mixed with $200 \,g$ of water at $15^{\circ} C$. Take the freezing temperature of water to be $0^{\circ} C$, the specific heat of ice equal to $2.2 \,J / g { }^{\circ} C$, specific heat of water equal to $4.2 \,J / g ^{\circ} C$ and the latent heat of ice equal to $335 \,J / g$. Assuming no loss of heat to the environment, the mass of ice in the final mixture is closest to .......... $g$
→$Assertion :$ Hollow shaft is found to be stronger than a solid shaft made of same equal material.
$Reason :$ Torque required to produce a given twist in hollow cylinder is greater than that required to twist a solid cylinder of same length and material.
→$Reason :$ Torque required to produce a given twist in hollow cylinder is greater than that required to twist a solid cylinder of same length and material.
A cricket bat is cut at the location of its centre of mass as shown Then:
The equation $\left( {P + \frac{a}{{{V^2}}}} \right)$ $(V - b)$ constant. The units of $a$ are
→In changing the state of thermodynamics from $A$ to $B$ state, the heat required is $Q$ and the work done by the system is $W.$ The change in its internal energy is
→