Two vessels of different materials are similar in every respect. The same quantity of ice filled in them gets melted in 25 minutes and 50 minutes respectively. Ratio of their thermal conductivities is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Given that, 
As from the above formula
Here, the material is different and the quantity is the same 
and all other parameters are constant
So the ratio of thermal conductivity is 
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