A rectangular piece of metal 3 cm high by 6 cm wide has a hole cut in its centre 1 cm high by 4 cm wide as shown in the diagram. As the metal is warmed from 0 °C to 100 °C, what will happen to the dimensions of the hole?

Engineering

Physics

Thermal Expansion

Question

both height and width will increase

both height and width will decrease

height will decrease while width will increase

both height and width will remain unchanged

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