Post Utme Noun 2024 Physics Question 23

Practice objective / multiple choice question 23 from the 2024 Post Utme Noun Physics examination.

Post Utme Noun 2024 Physics Objective / Multiple Choice
Question 23 POST_UTME_NOUN • 2024 • PHYSICS • objective

A heat engine operates between two temperatures $T_1$ and $T_2$. The engine has an efficiency of $\eta = 1 - \frac{T_2}{T_1}$. If the temperature of the hot reservoir is doubled, what is the new efficiency of the engine?

Answer Options

Correct Answer A. \frac{\eta}{2}
B. 2\eta
C. \eta
D. \frac{2\eta}{3}
Correct Answer
A
Correct Option:
\frac{\eta}{2}

About This Question

This is Post Utme Noun 2024 Physics Question 23. It is one of the objective questions from the 2024 Post Utme Noun Physics examination.

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