JEE Mains · Physics · STD 11 - 11. thermodynamics
The magnitude of heat exchanged by a system for the given cyclic process ABCA (as shown in figure) is (in SI unit) :
- A \(5 \pi\)
- B \(40 \pi\)
- C \(10 \pi\)
- D zero
Answer & Solution
Correct Answer
(A) \(5 \pi\)
Step-by-step Solution
Detailed explanation
\(\begin{aligned} & \mathrm{W}=\frac{1}{2} \pi \mathrm{R}^2 \\ & =\frac{1}{2} \times \pi \times\left(\frac{200}{2} \times 10^3\right) \times \frac{200}{2} \times 10^{-6} \\ & =\frac{10 \pi}{2}=5 \pi \mathrm{~J}\end{aligned}\)
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