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A brass sheet is 25 cm long and 8 cm breadth at 0°C. Its area at 100°C is $(α = 18 \times 10^{- 6} /^{0} C)$

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207.2 cm2

200.72 cm2

272 cm2

2000.72 cm2

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detailed solution

Correct option is B

A2=A1(1+βΔt),β=2α

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A brass sheet is 25 cm long and 8 cm breadth at 0°C. Its area at 100°C is α=18×10−6/0C

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A brass sheet is 25 cm long and 8 cm breadth at 0°C. Its area at 100°C is $(α = 18 \times 10^{- 6} /^{0} C)$