| ⇦ | 
| ⇨ |
The unit of thermal conductivity is
Options
(a) Wm⁻¹K⁻¹
(b) JK⁻¹
(c) WmK
(d) JK
Correct Answer:
Wm⁻¹K⁻¹
Explanation:
The heat current related to difference of temperature across the length l of a conductor of area A is
dH/dt = KA / ℓ ∆T (K=Coefficient of thermal conductivity)
.·. K = ℓ dH / A dt ∆T
Unit of K = W m⁻¹ K⁻¹.
Related Questions: - A source is moving towards an observer with a speed of 20 m/s and having frequency
- The Rutherford scattering experiment proves that an atom consists of
- A car of mass 1000 kg negotiates a banked curve of radius 90 m on a frictionless
- For transistor action (1) Base, emitter and collector regions should have similar size
- The equation of state for 5 g of oxygen at a pressure P and temperature T,
Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Physical World and Measurement
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A source is moving towards an observer with a speed of 20 m/s and having frequency
- The Rutherford scattering experiment proves that an atom consists of
- A car of mass 1000 kg negotiates a banked curve of radius 90 m on a frictionless
- For transistor action (1) Base, emitter and collector regions should have similar size
- The equation of state for 5 g of oxygen at a pressure P and temperature T,
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Physical World and Measurement (103)
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