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-s-.^(@)C` and the latent heat of ice is `8xx 10^(4) cal//kg`, then the amount of ice which will melt in one minute is

Options

A. `9.2 xx10^(-3)` kg
B. `8 xx10^(-3)` kg
C. `6.9 xx10^(-3)` kg
D. `5.4 xx10^(-3)` kg

Answer

C