A slab consist of two parallel layers of copper and brass of the same thickness and having thermal conductivities in the ratio 1:4. If the free face of braass is at 100 degree celcius and that of copper at 0 degree,the temp of interfaceis

It follows the same method as explained in your previous post,

http://www.askiitians.com/forums/Thermal-Physics/12/3572/transfer-of-heat.htm

solutions as follws:

K₁:K₂ = 1:4

K₁₍100-T) = K₂(T-0)

Temp. of interface = 20 C

--

Please feel free to post as many doubts on our disucssion forum as you can. If you find any question difficult to understand - post it here and
we will get you the answer and detailed solution very quickly.We are all IITians and here to help you in your IIT JEE preparation. All the best.

Regards,
Naga Ramesh
IIT Kgp - 2005 batch