Q. In order that the heat flows from one part of a solid to another part, what is required
A) Uniform density
B) Density gradient
C) Temperature gradient
D) Uniform temperature
Explanation
(c) Heat energy always flow from higher temperature to lower temperature. Hence, temperature difference $w.r.t.$ length (temperature gradient) is required to flow heat from one part of a solid to other part
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.