📊 Heat Transfer
Q. Which of the following has the lowest Prandtl number?
  • (A) Molten sodium (a coolant used in fast breeder reactor)
  • (B) Water
  • (C) Transformer oil
  • (D) Dilute H2SO4
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✅ Correct Answer: (A) Molten sodium (a coolant used in fast breeder reactor)

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