| ⇦ | 
| ⇨ |
The two ends of a rod of length L and a uniform cross-sectional area A are kept at two temperatures T₁ and T₂ (T₁ > T₂). The rate of heat transfer, dQ/dt through the rod in a steady state is given by:
Options
(a) dQ/dt = k(T₁ – T₂) / LA
(b) dQ/dt = kLA (T₁ – T₂)
(c) dQ/dt = kA (T₁ – T₂) / L
(d) dQ/dt = kL (T₁ – T₂) / A
Correct Answer:
dQ/dt = kA (T₁ – T₂) / L
Explanation:
dQ / dt = kA (T₁ -T₂) / L
[(T₁ -T₂) is the temperature difference]
Related Questions: - The near point and far point of a person are 40 cm and 250 cm, respectively.
- The ratio of the weight of a man in a stationary lift and when it is moving downwards
- An artificial satellite is revolving round the earth in a circular orbit. Its velocity
- The velocity of sound is V, in air. If the density of air is increased to four times
- A paramagnetic sample shows a net magnetisation of 0.8 Am⁻¹, when placed
Topics: Properties of Bulk Matter
(130)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The near point and far point of a person are 40 cm and 250 cm, respectively.
- The ratio of the weight of a man in a stationary lift and when it is moving downwards
- An artificial satellite is revolving round the earth in a circular orbit. Its velocity
- The velocity of sound is V, in air. If the density of air is increased to four times
- A paramagnetic sample shows a net magnetisation of 0.8 Am⁻¹, when placed
Topics: Properties of Bulk Matter (130)
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.
Share this page with your friends
Leave a Reply