Questions
If equal quantities of ice melt completely in two identical containers in 30 and 20 minutes respectively, the thermal conductivities of the material of the two containers are in the
ratio:
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a
1 : 1
b
1 : 2
c
3 : 2
d
2 : 3
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Correct option is D
Qt=mLt∞K⇒K1K2=t2t1Similar Questions
Water can be heated in a cup of paper because:
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