Which is not based on Archimedes' principle?

Question

Which is not based on Archimedes' principle? — Exam MCQ

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B. Design of aeroplane wings — Lactometers, hydrometers and floating vessels rely on buoyancy. Aeroplane wings generate aerodynamic lift through airflow and pressure differences.

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A. Lactometers

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C. Design of ships and submarines

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D. Hydrometers

Which is not based on Archimedes' principle?

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