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1. |
If two rods A and B of equal length L, and different areas of cross-section \[{{\operatorname{A}}_{1}}\]and\[{{A}_{2}}\]have one end each at temperature\[{{\operatorname{T}}_{1}}\]and \[{{T}_{2}}\], have equal rates of flow of heat, then |
A. | \[{{A}_{1}}={{A}_{2}}\] |
B. | \[\frac{{{A}_{1}}}{{{A}_{2}}}=\frac{{{K}_{1}}}{{{K}_{2}}}\] |
C. | \[\frac{{{A}_{1}}}{{{A}_{2}}}=\frac{{{K}_{2}}}{{{K}_{1}}}\] |
D. | \[{{K}_{1}}={{K}_{2}}\] |
Answer» D. \[{{K}_{1}}={{K}_{2}}\] | |