A blacksmith fixes iron ring on the rim of the wooden wheel of a bullock cart. The…
Physics · JEE Advanced · NTA Exams — Thermodynamics
A blacksmith fixes iron ring on the rim of the wooden wheel of a bullock cart. The diameter of the rim and the iron ring are 5.243 m and 5.231 m respectively at 27°C. To what temperature should the ring be heated so as to fit the rim of the wheel ? (α for iron = 1.2 × 10–5/°C)
- 191 °C
- 254 °C
- 218 °C
- 164 °C
Answer
(C) 218 °C
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