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write any three applications of expansion of solids |
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Answer» Advantage of thermal expansion of solid Following are the advantages of thermal expansion: (1) If we find it difficult to remove the stopper from a glass bottle, we can heat the neck of the bottle. Now the neck of the bottle expands and the stopper comes out easily. (2) The principle of thermal expansion is used in fixing iron rim with the wooden wheel firmly. (3) Rivets are used to hold steel plates together very tightly. A very hot rivet is pushed through the two plates and its end is hammered over. When the rivets cools down it pulls the two plates together very tightly.
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