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The two opposite faces of a cubical piec...

The two opposite faces of a cubical piece of iron (thermal conductivity = 0.2 CGS units) are at `100^(@)C` and `0^(@)C` in ice. If the area of a surface is `4cm^(2)` , then the mass of ice melted in 10 minutes will b

A

30 gm

B

300 gm

C

5 gm

D

50 gm

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The correct Answer is:
B
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