A cylindrical rod with one end in steam and other end in ice results in melting of 0.1 g of ice per second If the rod is replaced by another with half the length, double the radius of first and if the conductivity of material of second is 1/4 of first, the rate at which ice melts is (in g/s)

Options

A. 3.2
B. 1.6
C. 0.2
D. 0.1

Answer

C