What should be the lengths of steel and copper rods at 0°C so that the length of the…
Physics · JEE Main · NTA Exams — Thermodynamics
What should be the lengths of steel and copper rods at 0°C so that the length of the steel rod is 5 cm longer than the copper rod at any temperature?
α (Steel) = 1.1 × 10–5 °C–1 and
α (Copper) = 1.7 × 10–5 °C–1
α (Steel) = 1.1 × 10–5 °C–1 and
α (Copper) = 1.7 × 10–5 °C–1
- 14.17 cm, 9.17 cm
- 9.17 cm, 14.17 cm
- 28.34 cm, 18.34 cm
- 14.17 cm, 18.34 cm
Answer
(A) 14.17 cm, 9.17 cm
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