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An iron bar of length 10 m is heated from 0 °C to 100 °C. If the coefficient of linear thermal expansion of iron is 10×10−6 °C−1, the increase in the length of the bar in cm is
Correct answer is '1'. Can you explain this answer?
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An iron bar of length 10 m is heated from 0 °C to 100 °C. If the coef...
The change in length ∆l is proportional to ll and ∆T. Stated mathematically
Δl = αlΔT
Where, α is called the coefficient of linear thermal expansion for the material.
Given, ΔT = 100 °
l = 10 m
∴ Δl=10 × 100 × 10 × 10−6
= 10−2 m = 1 cm
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An iron bar of length 10 m is heated from 0 °C to 100 °C. If the coefficient of linear thermal expansion of iron is 10×10−6 °C−1, the increase in the length of the bar in cm isCorrect answer is '1'. Can you explain this answer?
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