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Physics Medium FPSC PPSC NTS Uploaded: 13 Jul 2026

Which phenomenon explains why objects appear to weigh less when submerged in water?

  • A Surface tension
  • B Buoyancy
  • C Cohesion
  • D Adhesion
Correct Answer: Option B — Buoyancy
Explanation:
Buoyancy is the upward force exerted by a fluid on a submerged object equal to the weight of fluid displaced making objects appear lighter as described by Archimedes' Principle.
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