| ⇦ | 
| ⇨ |
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: - The electric and magnetic field assiciated with an E.M. wave
- When you make ice cubes, the entropy of water
- If μᵥ=1.5230 and μʀ=15.145, then dispersive power of crown glass is
- A 5 watt source emits monochromatic light of wavelength 5000Å. When placed
- A body covers 200 cm in the first 2 seconds and 220 cm in the next 4 seconds.
Topics: Properties of Bulk Matter
(130)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The electric and magnetic field assiciated with an E.M. wave
- When you make ice cubes, the entropy of water
- If μᵥ=1.5230 and μʀ=15.145, then dispersive power of crown glass is
- A 5 watt source emits monochromatic light of wavelength 5000Å. When placed
- A body covers 200 cm in the first 2 seconds and 220 cm in the next 4 seconds.
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