| ⇦ | 
| ⇨ |
Two metal rods 1 and 2 of same lengths have same temperature difference between their ends. Their thermal conductivities are K₁ and K₂ and cross sectional areas A₁ and A₂, respectively. If the rate of heat conduction in rod 1 is four times that in rod 2, then
Options
(a) K₁A₁ = K₂A₂
(b) K₁A₁ = 4K₂A₂
(c) K₁A₁ = 2K₂A₂
(d) 4K₁A₁ = K₂A₂
Correct Answer:
K₁A₁ = 4K₂A₂
Explanation:
Q = 4Q (Given)
K₁A₁ ∆t / L= 4 K₂A₂ ∆t / L
K₁A₁ = 4K₂A₂
Related Questions: - Two bullets are fired simultaneously, horizontally and with different speeds
- Three identical spheres, each of mass 3 kg are placed touching each other
- The 6563 Å line emitted by hydrogen atom in a star is found to be red shifted by 5Å
- A 6 volt battery is connected to the terminals of a three metre long wire of uniform
- A source and an observer approach each other with same velocity 50 m/s. If the frequency
Topics: Properties of Bulk Matter
(130)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Two bullets are fired simultaneously, horizontally and with different speeds
- Three identical spheres, each of mass 3 kg are placed touching each other
- The 6563 Å line emitted by hydrogen atom in a star is found to be red shifted by 5Å
- A 6 volt battery is connected to the terminals of a three metre long wire of uniform
- A source and an observer approach each other with same velocity 50 m/s. If the frequency
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