An aluminium cylinder (k = 210 W/m.K) 50 mm in diameter and 10 cm long is initially at uniform temperature of 200°C is plunged into a quenching bath at 10°C. Take h = 530 W/ m 2 .K, what is the...

An aluminium cylinder (k = 210 W/m.K) 50 mm in diameter and 10 cm long is initially at uniform temperature of 200°C is plunged into a quenching bath at 10°C. Take h = 530 W/ m².K, what is the temperature on centreline of the cylinder after one minute?