Q. A thin circulr disc has a concentric hole in it. On heating the diameter of hole will

(A) decrease
(B) remain constant
(C) 37,500 kg
(D) increase

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✅ Correct Answer: (D) increase

Published by Mr. Dubey ⭐ 111.54K Points at 20-Sep-2023 12:31 pm in Heat Transfer

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