why diameter of a cavity increase when its temp. increase. Plzz give complete explanation.i am confused because i think that due to thermal expantion body expands uniformly in all directions then diameter should decrease.... Plzz clear my doubt...For eg this promlem...If you heat a metal ring equally on all sides, will thehole in the middle increase in size, decrease, or stay the same?

Aditi Chauhan , 10 Years ago

Grade 10