A metal rod of length 20 cm and diamter 2 cm is convered with a non conducting substance.
Channel: Doubtnut
Date: 2020-08-16

A metal rod of length 20 cm and diamter 2 cm is convered with a non conducting substance. One of its ends is maintained at `100^(@)C` , while the other end is put at `0^(@)C`. It is found that 25 g ice melts in 5 min. calculate the coefficient of thermal conductivity of the metal. Latent that of ice = `80 cal g^(-1)`.