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Which consequence decreases irreversible losses reducing a cryogenic refrigerator's efficiency?

A)Increased temperature differential between stages
B)Utilizing Carnot-cycle-based stages iteratively
C)Using lower thermal conductivity materials
D)Limiting vibrational energy dissipation

💡 Explanation

Using Carnot cycles staged iteratively optimizes heat transfer. This is because minimizing temperature differences between stages minimizes entropy generation during refrigeration rather than maximizing temperature differential. Therefore efficiency is optimized via staged carnot bettering irreversible losses.

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