Consider the rods of same length and different specific heats (s₁,s₂), conductivities ( k₁ ,k₂ ) and areas of cross-sections ( A₁ ,A₂) and both having temperature T₁ and T₂ at their ends. If the rate of loss of heat due to conduction is equal, then:

• A

  ${\mathrm{k}}_1{\mathrm{A}}_1={\mathrm{k}}_2{\mathrm{A}}_2$

• B

  $\frac{{\mathrm{k}}_1{\mathrm{A}}_1}{{\mathrm{s}}_1}=\frac{{\mathrm{k}}_2{\mathrm{A}}_2}{{\mathrm{s}}_2}$

• C

  ${\mathrm{k}}_2{\mathrm{A}}_1={\mathrm{k}}_1{\mathrm{A}}_2$

• D

  $\frac{{\mathrm{k}}_1{\mathrm{A}}_1}{{\mathrm{s}}_2}=\frac{{\mathrm{k}}_1{\mathrm{A}}_2}{{\mathrm{s}}_1}$