The diagram shows four rods. Each rod is made of a different metal.
Wax is used to attach small metal balls at the rod ends P, Q, R and S.
Each rod is the same size. They are heated uniformly by a Bunsen burner at point X.
As the rods warm up, the wax melts and the balls fall off.
Why does the ball on the silver rod fall first?
Silver is the best conductor of heat.
2 )
Silver is the worst conductor of heat.
3 )
Silver is the best radiator of heat.
4 )
Silver is the worst radiator of heat.
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