Heat TransferHard
Question
Two bars of thermal conductivities K and 3K and lengths 1 cm and 2 cm respectively have equal cross-sectional area. they are joined lengths wise as shown in the figure. If the temperature at the ends of this composite bar is 0oC and 100oC respectively (see figure), then the temperature of the interface (φ) is
Options
A.50oC
B.
oC
oCC.60oC
D.
oC
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