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JEE Advanced Model Paper 17 with solutions for online practice

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Question : 1

Total: 60

A furnace has a two layered wall as shown schematically. Each layer has the same area ofcross section. The temperature θ at the interface of two layers can be reduced by

increasing the thermal conductivity of outer layer
decreasing the thermal conductivity of inner layer
by increasing the thickness of inner layer
by decreasing the thickness of outer layer

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