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If the temperature of a rod is increased by 10°C, its length increases by 1%. What is the percentage change in volume of the body of the same material for 10°C increase in temperature?

If the temperature of a rod is increased by 10°C, its length increases by 1%. What is the percentage change in volume of the body of the same material for 10°C increase in temperature? Correct Answer 3%

∆I/I×100=100α∆T ∆V/V×100=100γ∆T=100×3α×∆T Hence for the same rise of temperature, an increase in volume is 3 times the increase in length.

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