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Two rods having thermal conductivity in the ratio of 5:3 having equal lengths and equal cross-sectional area are joined end to end. If the temperature of the free end of the first rod is 100°C and free end of the second rod is 20°C, then the temperature of the junction is?

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In thermodynamics, absorption and emission are two of the four main methods of heat transfer:
Absorption: The spectra produced when electrons of an atom absorb energy
Emission: The spectra produced when electrons release energy


Two rods having thermal conductivity in the ratio of 5:3 having equal lengths and equal cross-sectional area are joined end to end. If the temperature of the free end of the first rod is 100°C and free end of the second rod is 20°C, then the temperature of the junction is?






 
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