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Question 6442
NEET Physics · Hard

Mechanical Properties of Fluids: Buoyancy MCQ

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BuoyancyHardQuestion 6442

Question

A wooden block (density 600 kg/m³) of volume 10⁻³ m³ is tied by a string to pool bottom (water ρ=1000, g=10). Tension in string:
  1. A
    6 N
  2. B
    4 N
    Correct
  3. C
    10 N
  4. D
    2 N

Correct answer

4 N

Explanation

F_B = 1000×10⁻³×10 = 10 N (up). Weight = 600×10⁻³×10 = 6 N (down). T = F_B − W = 10−6 = 4 N.

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