Question

take a rod or a flat piece of metal. fix small wax pieces on the rod. these pieces should be at equal distances. clamp the rod to a stand. now, heat the other end of the rod and observe. which piece of wax falls first and why? explain the phenomena involved.

Answer 1

hey,

Answer:

the wax piece fixed near the flame will fall first.

Explanation:

Metals are good conductors of heat and electricity, when we heat a metal rod  from one end entire metal rod gets heated because of flow of heat [due to vibration of atoms].

so the wax piece nearest to the flame will fall [melt] first and the one located far from the flame will be last to fall.

all the wax piece will fall in order of their distance.

the phenomena involved here is conduction i.e. heat flow from one end to another in solids generally.

hope it helps!!