Find the ratio of the lengths of an iron rod and an aluminium rod for which the…
Physics · JEE Advanced · NTA Exams — Thermodynamics
Find the ratio of the lengths of an iron rod and an aluminium rod for which the difference in the lengths is independent of temperature. Coefficients of linear expansion of iron and aluminium are 12 × 10–6/°C and 23 × 10–6/°C respectively.
- 23 : 12
- 12 : 23
- data insufficient
- Not possible
Answer
(A) 23 : 12
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