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NDA General Ability General Science 2025 NDA 2025 (Phase 1)

NDA General Ability Question (2025) — Solution

Question

When a solid body is partially or completely immersed in a fluid, the fluid exerts an upward force on the body. The magnitude of the force is equal to 1. the mass of the body 2. the weight of the displaced fluid by the body Which of the above is/are correct?

Options

  1. A. 1 only
  2. B. 2 only
  3. C. Both 1 and 2
  4. D. Neither 1 nor 2

Answer

B. 2 only

Step-by-step solution

According to Archimedes' principle, when a solid body is partially or completely immersed in a fluid, the fluid exerts an upward buoyant force on the body. The magnitude of this upward force is exactly equal to the weight of the fluid displaced by the immersed part of the body. Therefore, statement 1 is incorrect and statement 2 is correct. Answer: 2 only

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