Use the following information to answer the next question- An aluminium sheet is heated to 27- C and then a hole is made in the sheet by cutting out a disc of area 16 cm 2- The coefficient of linear expansion - is 2-5 - 10-5 - KIf the sheet is heated to 225- C- then the area of the hole willA- reduce by 0-16 cm 2B- reduce by 0-362 cm 2C- increase by 0-16 cm 2D- increase by 0-362 cm 2

The correct option is B reduce by 0.362 cm2 ...

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Standard IX

Physics

Heat Transfer

Use the follo...

Question

Use the following information to answer the next question.

An aluminium sheet is heated to 27°C and then a hole is made in the sheet by cutting out a disc of area 16 cm². The coefficient of linear expansion (α) is 2.5 × 10^{− 5}/K

If the sheet is heated to 225°C, then the area of the hole will

reduce by 0.16 cm²

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reduce by 0.362 cm²

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increase by 0.16 cm²

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increase by 0.362 cm²

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Solution

The correct option is B
reduce by 0.362 cm²

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Use the following information to answer the next question. An aluminium sheet is heated to 27°C and then a hole is made in the sheet by cutting out a disc of area 16 cm2. The coefficient of linear expansion (α) is 2.5 × 10− 5 /K If the sheet is heated to 225°C, then the area of the hole will

The correct option is B reduce by 0.362 cm2

The correct option is B
reduce by 0.362 cm²