Heat and Thermal ExpansionHard
Question
The figure shows a system of two concentric spheres of radii r1 and r2 and kept at temperatures T1 and T2 respectively. The radial rate of flow of heat in a substance between the two concentric spheres is proportional to :-
Options
A.
B.(r2 - r1)
C.
D.log 
= - KA
= - K4πr2 
= -4πK
dT
More Heat and Thermal Expansion Questions
The relation between isothermal elasticity (Eθ) and adiabatic elasticity (Eφ) is (γ = Cp/Cv) : -...One mole of an ideal gas undergoes P = Here P0 and V0 constant. Change in temperature of the gas when volume is changed ...A hollow copper sphere & a hollow copper cube of same surface area & negligible thickness, are filled warm water of same...An aluminum and steel rods having same lengths and cross-sections are joined to make total length of 120 cm at $30^{\cir...Logarithms of readings of pressure and volume fo ran ideal gas plotted on a graph as shown in figure. By measuring the g...