Q. Four balls made of lead, glass, brass and iron made of same size, are heated to 100?C. They are simultaneously placed on a sheet of paraffin nearly 5 mm thick. Which ball will drop first?

(A) Lead
(B) Glass
(C) 37,500 kg
(D) Iron

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✅ Correct Answer: (D) Iron

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

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