A metal rod of length 
and area of cross-section 2.8. 
is covered with a non-conducting substance/ One end of it is maintained at 
, while the other end is put in ice at 
. It is found that 
of ice melts in 
. The thermal conductivity of the metal in 
is (Latent heat of ice is 
.)
Text Solution
Verified by ExpertsThe correct answer is:
D
Given,
Length of rod, 
Area of cross-section of rod, 
Temperature difference 
Quantity of melted ice, 
Total time, 
.
and latent heat of ice, 
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