Question

Give one use of the expansion of an object on heating. Please give me correct answer​

Answer 1

Answer:

expansion of railway tracks

Answer 2

Answer:

Thermal expansion which is used in air condition system and oven. In this thermostat two metals strips are used and these metals have different expansion coefficient and both metals are bonded with each other. When heat is supplied to these metals both strips bend and it helps in closing and opening a contact.