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Questions  

Two circular discs A and B of same material with equal radii are blackened. They are heated to same temperature and are cooled under identical conditions. What inference do you draw from their cooling curves?
 

a
A and B have same specific heats.
b
Specific heat of A is less.
c
Specific heat of B is less.
d
Nothing can be said.

detailed solution

Correct option is B

Cooling rate ∞1swhere s = Specific heat capacity.

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