The Coefficient of Linear Expansion of Copper Is 17 ×

question 20

Multiple Choice

The coefficient of linear expansion of copper is 17 × 10^-6 K^-1.A sheet of copper has a round hole with a radius of 3.0 m cut out of it.If the sheet is heated and undergoes a change in temperature of 80 K,what is the change in the radius of the hole?

• A)It decreases by 4.1 mm.
• B)It increases by 4.1 mm.
• C)It decreases by 8.2 mm.
• D)It increases by 8.2 mm.
• E)It does not change.

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