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
Figure given shows the face of a cathode-ray oscilloscope tube, as viewed from in front. $i.e.$ the electron beam is coming out normally from the plane of the paper. The electron beam passes through a region where there are electric and magnetic fields directed as shown. The deflections of the spot from the center of the screen produced by the electric field $E$ and the magnetic field $B$ separately are equal in magnitude. Which one of the diagrams below shows a possible position of the spot on the screen when both fields are operating?
→In an $A.C.$ circuit, $I_{\text {rms }}$ and $I_{0}$ are related as
→A two metre wire is moving with a velocity of $1$ $m/sec$ perpendicular to a magnetic field of $0.5\, weber/m^2$. The e.m.f. induced in it will be.....$volt$
→An electron collides with an atom in its ground state at rest. The atom then emits a photon of energy $E_{photon}$ . In this process the change $\Delta E_{elec}$ in the electron's energy is
→A process is shown in the diagram. Which of the following curves may represent the same process ?
A rod of length $10\ meter$ at $0\,^oC$ having expansion coefficient $\alpha = (2x^2 + 1) \times 10^{-6}\,C^{-1}$ where $x$ is the distance from one end of rod. The length of rod at $10\,^oC$ is
→Increase in temperature of a gas filled in a container would lead to
A TV transmission tower antenna is at a height of $20\, m$. Suppose that the receiving antenna is at.
→$(i)$ ground level
$(ii)$ a height of $5 \,m$.
The increase in antenna range in case $(ii)$ relative to case $(i)$ is $n \%$.
The value of $n$, to the nearest integer, is .....$\%$
The displacement-time graph of a particle executing $SHM$ is shown. Which of the following statements is/are true ?
→During illness an $80\, kg$ man ran a fever of $102.2^o F$ instead of normal body temperature of $98.6^o F$. Assuming that human body is mostly water, how much heat is required to raise his temperature by that amount .......... $kcal$
→