One end of a copper rod of length \[1.0\ m\] and area of cross-section \[{{10}^{-3}}\] is immersed in boiling water and the other end in ice. If the coefficient of thermal conductivity of copper is \[92\ cal/m\text{-}s{{\text{-}}^{o}}C\] and the latent heat of ice is \[8\times {{10}^{4}}cal/kg\], then the amount of ice which will melt in one minute is [MNR 1994]

One end of a copper rod of length \[1.0\ m\] and area of cross-section

1.	One end of a copper rod of length \[1.0\ m\] and area of cross-section \[{{10}^{-3}}\] is immersed in boiling water and the other end in ice. If the coefficient of thermal conductivity of copper is \[92\ cal/m\text{-}s{{\text{-}}^{o}}C\] and the latent heat of ice is \[8\times {{10}^{4}}cal/kg\], then the amount of ice which will melt in one minute is [MNR 1994]
A.	\[9.2\times {{10}^{-3}}kg\]
B.	\[8\times {{10}^{-3}}kg\]
C.	\[6.9\times {{10}^{-3}}kg\]
D.	\[5.4\times {{10}^{-3}}kg\]
Answer» D. \[5.4\times {{10}^{-3}}kg\]