Observing heat conduction by metals:
Take an iron rod. Stick pins on it with the help of wax. Now fix the rod to a stand. Heat one end rod with a spirit lamp and see how the pinds fall off.
Pin of which end fell first?

Observing heat conduction by metals: Take an iron rod. Stick pins on it with the help of wax. Now fix the rod to a stand. Heat one end rod with a spirit lamp and see how the pinds fall off. Why did the pins fall from iron rod?

Which one of the paper pins will fall off from the metal rod first?

Jaya has taken an iron rod and fixed pins with the help of wax on one side. On the other side, she heated the iron rod. By observing the phenomena that she came to know._______a) Wax is melted on heating b) Iron is a good conductor of heat c) Iron is an insulator.

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)

One end of a cylindrical rod is kept in steam chamber and the other end in melting Ice. Now 0.5 gm of ice melts in 1 sec. If the rod is replaced by another rod of same length, half the diameter and double the conductivity of the first rod, then rate of melting of ice will be

One end of a unifonn metal rod of length 100 cm is placed in ice and the other end is placed in boiling water. A point of the rod which is at a distance of 60 cm from the ice end is maintained at a constant temperature of 325^(@) C. If 2 g of water is converted into steam per second.-the mass of ice melted per second in steady state is (Latent heat of steam = 6.75 times latent heat of fusion of ice)