copper rod iron rod and glass rod of the same thickness and length was taken. nail was placed fixed at one end of each using Wax . the other end of each rod was equally heated at the same time . the nails from all the 3 rods drop why? From which rod the nail drop first? why?
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Two identical rods of copper and iron are coated with wax uniformly. When one end of each is kept at temperature of boiling water the length upto which wax melts are 8.4 cm and 4,2 cm, respectively. If the thermal conductivity of copper is 0.92, then thermal conductivity of iron
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