Two Carnot engine A and B are operated in series. The engine A receives

Two Carnot Engine A And B Are Operated In Series Physics Question

Two Carnot engine A and B are operated in series. The engine A receives that heat from the source at temperature T₁ and rejects the heat to the sink at temperature T. The second engine B receives the heat at temperature T and rejects to its sink at temperature T₂. For what value of T the efficiencies of the two engines are equal?


(a) T₁ + T₂ / 2
(b) T₁ – T₂ / 2
(c) T₁ T₂
(d) √(T₁ T₂)

Correct Answer:

√(T₁ T₂)


Efficiency of engine A, ?¬ツチ = 1 – T / T₁,
Efficiency of engine B, ?¬ツツ = 1 – T₂ / T,
Here, ?¬ツチ = ?¬ツツ
T / T₁ = T₂ / T ⇒ T = √T₁T₂

Related Questions:

  1. A proton and an alpha particle both enter a region of uniform magnetic field B,
  2. In a parallel plate capacitor of capacitance C, a metal sheet is inserted
  3. A body of mass M hits normally a rigid wall with velocity V and bounces back
  4. A wire is stretched under a force. If the wire suddenly snaps the temperature
  5. When a metallic surface is illuminated with radiation of wavelength λ,

Topics: Thermodynamics (179)
Subject: Physics (2479)

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.