Verified Solution • 2025–26 Session moderate

QJEEM25Phbd2b: JEE Main 2025 Physics - Class 11 JEEM25Phbd2b Solution: The magnitude of heat exchanged by a system for the given…

The magnitude of heat exchanged by a system for the given cyclic process ABCA (as shown in figure) is (in SI unit) :

JEE Main 2025 (Online) 24th January Evening Shift Physics - Heat and Thermodynamics Question 3 English

Multiple Choice Options

  • A zero
  • B 40 π\pi
  • C 5 π\pi
  • D 10 π\pi

Step-by-Step Verified Solution

JEE Main 2025 (Online) 24th January Evening Shift Physics - Heat and Thermodynamics Question 3 English Explanation

amp;W=12πR2amp;=12×π×(2002×103)×2002×10−6amp;=10π2=5π J\begin{aligned}& \mathrm{W}=\frac{1}{2} \pi \mathrm{R}^2 \\& =\frac{1}{2} \times \pi \times\left(\frac{200}{2} \times 10^3\right) \times \frac{200}{2} \times 10^{-6} \\& =\frac{10 \pi}{2}=5 \pi \mathrm{~J}\end{aligned}

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