Two rods of same length and same area of cross section are joined Temperature of two ends are as sho

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10-2.Transmission of Heat

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Two rods of same length and same area of cross section are joined

Temperature of two ends are as shown in figure. As we move along the rod, temperature are as shown in following

A

$K_1 > K_2$

B

$K_1 = K_2$

C

$K_1< K_2$

D

None of these

Solution

$\frac{\mathrm{d} \mathrm{H}}{\mathrm{dt}}=\mathrm{k} \mathrm{A} \frac{\mathrm{dT}}{\mathrm{dx}}$

$\frac{d T}{d x} 1<\frac{d T}{d x} 2$

$\left.\Rightarrow \mathrm{K}_{1}>\mathrm{K}_{2}\right]$

Standard 11

Physics

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