AP EAMCET · PHYSICS · Thermodynamics
The slopes of the isothermal and adiabatic \(p-V\) graphs of a gas are by \(S_I\) and \(S_A\) respectively. If the heat capacity ratio of the gas is \(\frac{3}{2}\), then \(\frac{S_I}{S_A}=\)
- A \(\frac{3}{2}\)
- B \(\frac{2}{3}\)
- C \(\frac{1}{2}\)
- D \(\frac{1}{3}\)
Answer & Solution
Correct Answer
(B) \(\frac{2}{3}\)
Step-by-step Solution
Detailed explanation
The slope of isothermal \(\left(S_I\right)\) and adiabatic \(\left(S_A\right)\) \(p-V\) graph of gas are related as Slope of adiabatic \(=\gamma \times\) slope of isothermal \(\Rightarrow \quad S_A=\gamma \times S_I \Rightarrow S_I / S_A=1 / \gamma\) \(=\frac{1}{3 / 2}\)…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from PHYSICS
- Two mercury drops of radii \(\mathrm{r}\) and \(2 \mathrm{r}\) merge to form a bigger drop. The surface energy released in the process is nearly
(Surface tension mercury is \(\mathrm{S}\) and take \(9^{2 / 3}=4.326\) )AP EAMCET 2023 Easy - In the given circuit, find the energy stored in the coil at steady state.
AP EAMCET 2021 Medium - A liquid of mass is kept warm in a vessel using an electric heater. The liquid is maintained at when the power supplied by the heater is and surrounding temperature is . As the heater is switched off, it took time for the temperature of the liquid to fall from to . The specific heat capacity of the liquid isAP EAMCET 2019 Hard
- Statement (A) For an ideal liquid, the bulk modulus is infinite and the shear modulus is zero.
Statement (B) The volume contraction of a metal cube of bulk modulus \(140 \mathrm{GPa} .10 \mathrm{~cm}\) on a edge, when subjected to a hydraulic pressure of \(7 \times 10^6 \mathrm{~Pa}\) is \(-0.05 \mathrm{~m}^3\).
Statement (C) A spiral spring is stretched by a weight attached to it. The strain is tensile.AP EAMCET 2022 Medium - Light falls on a non-reflecting surface normally. If the average force exerted on a surface with area \(15 \mathrm{~cm}^2\) during 20 minute time interval is \(10^{-6} \mathrm{~N}\), then energy flux of light is
(Velocity of light \(=3 \times 10^8 \mathrm{~ms}^{-1}\) )AP EAMCET 2022 Medium - In a meter-bridge if the left and right gaps are connected with \(2 \Omega\) and \(3 \Omega\) resistances, respectively then the bridge is balanced. The resistance to be connected with \(3 \Omega\) resistance to get the balancing point at midpoint of the bridge wire isAP EAMCET 2019 Medium
More PYQs from AP EAMCET
- The angle between the tangents drawn to the parabola \(y^2=4 x\) from the point \((1,4)\) isAP EAMCET 2019 Easy
- A parallel plate capacitor is completely immersed in a liquid of resistivity \(0.25 \Omega \mathrm{m}\) and relative permittivity 80 . If the plates of the capacitor are connected to an alternating voltage source of \(\mathrm{V}_0 \sin (\omega \mathrm{t})\) volt at a frequency of \(0.4 \mathrm{GHz}\), then the ratio of the amplitudes of the displacement current and conduction current is ____
\(\left(\frac{1}{4 \pi \epsilon_0}=9 \times 10^9 \mathrm{Nm}^2 \mathrm{C}^{-2}\right)\)AP EAMCET 2017 Hard - If \(\mathbf{O A}=2 \hat{\mathbf{i}}+2 \hat{\mathbf{j}}+\hat{\mathbf{k}}, \mathbf{O B}=2 \hat{\mathbf{i}}+4 \hat{\mathbf{j}}+4 \hat{\mathbf{k}}\) and the length of the internal bisector of \(\angle B O A\) of triangle \(A O B\) is \(k\), then \(9 k^2=\)AP EAMCET 2019 Easy
- Out of thirty points in a plane, eight of them are collinear. The number of straight lines that can be formed by joining these points, isAP EAMCET 2014 Hard
- A vibration magnetometer consists of two identical bar magnets placed one over the other such that they are perpendicular and bisect each other. The time period of oscillation in a horizontal magnetic field \(2^{5 / 4} \mathrm{~s}\). One of the magnets is removed and if the other magnet oscillates in the same field, then the time period in seconds is :AP EAMCET 2003 Hard
- The energy of a photon in a monochromatic light of wavelength \(621 \mathrm{~nm}\) matches with the band gap of a semiconducting material. Then the minimum energy required to create an electron-hole pair from the semiconductor is
[Take hc \(=1242 \mathrm{eV}-\mathrm{nm}\), where h is Planck's constant and \(\mathrm{c}\) is speed of light in vacuum]AP EAMCET 2022 Easy