A substance of mass 
requires a power input of 
watts to remain in the molten state at its melting point. When the power is turned off, the sample completely solidifies in time 
second. What is the latent heat of fusion of the substance?
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Heat lost in t second 
or heat lost per second 
This must be the heat supplied for keeping the substance in molten state per second
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