Figure shows three different arrangements of materials $1, 2$ and $3$ to form a wall. Thermal conductivities are $k_1 > k_2 > k_3$ . The left side of the wall is $20\,^oC$ higher than the right side. Temperature difference $\Delta T$ across the material $1$ has following relation in three cases
Figure shows three different arrangements of materials $1, 2$ and $3$ to form a wall. Thermal conductivities are $k_1 > k_2 > k_3$ . The left side of the wall is $20\,^oC$ higher than the right side. Temperature difference $\Delta T$ across the material $1$ has following relation in three cases
- A
$\Delta T_a > \Delta T_b > \Delta T_c$
- B
$\Delta T_a = \Delta T_b = \Delta T_c$
- C
$\Delta T_a = \Delta T_b > \Delta T_c$
- D
$\Delta T_a = \Delta T_b < \Delta T_c$
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- [JEE MAIN 2021]
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