MCQ
Consider the process on a system shown in figure. During the process, the work done by the system:
- ✓Continuously increases.
- BContinuously decreases.
- CFirst increases then decreases.
- DFirst decreases then increases.
✓
Answer
Correct option: A.
Continuously increases.
Explanation:
Work done by a system, $\text{W}=\int\text{PdV}$
Here,
P = Pressure on the system
dV = change in volume
Since dV is positive, i.e. the volume is continuously increasing, work done by the system also continuously increases.
Work done by a system, $\text{W}=\int\text{PdV}$
Here,
P = Pressure on the system
dV = change in volume
Since dV is positive, i.e. the volume is continuously increasing, work done by the system also continuously increases.
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
Which of the following nuclear fragments corresponding to nuclear fission between neutron $\left({ }_0^1 \mathrm{n}\right)$ and uranium isotope $\left({ }_{92}^{235} \mathrm{U}\right)$ is correct:
→Two identical capacitors $1$ and $2$ are connected in series to a battery as shown in figure. Capacitor $2$ contains a dielectric slab of dielectric constant k as shown. $Q_1$ and $Q_2$ are the charges stored in the capacitors. Now the dielectric slab is removed and the corresponding charges are $Q’_1$ and $Q’_2$. Then
→The current in a metallic conductor is plotted against voltage at two different temperatures $T_1$ and $T_2$. Which is correct
→If an electron oscillates at a frequency of 1 GHz it gives
If in compound microscope $m_1$ and $m_2$ be the linear magnification of the objective lens and eye lens respectively, then magnifying power of the compound microscope will be
→The following configuration of gate is equivalent to
When two deuterium nuclei fuse together to form a tritium nuclei, we get a
An $\alpha$ particle and a proton are accelerated from rest through the same potential difference. The ratio of linear momenta acquired by above two particals will be.
→The wavelength $\lambda$, frequency $v$, velocity $v$ and intensity I of a light ray transmitted in air respectively. If this ray enters water, then the values of these quantities become $\lambda^{\prime}, \nu^{\prime}, v^{\prime}$ and $I^{\prime}$ respectively. Which of the following relations is correct?
→Figure shows a square loop $ABCD$ with edge length $a$. The resistance of the wire $ABC$ is $r$ and that of $ADC$ is $2r$. The value of magnetic field at the centre of the loop assuming uniform wire is
→