The figure shows a system of two concentric spheres of radii and kept at temperatures respectively. The radial rate of flow of heat in a substance between the two concentric spheres is proportional to
As we have learned
Thermal Conductivity -
K = thermal conductivity
- wherein
Rate of flow of heat
We have a spherical shell of radius r and thickness dx
Option 1)
Option 2)
Option 3)
Option 4)
Study 40% syllabus and score up to 100% marks in JEE