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Question 6480
NEET Physics · Hard

Mechanical Properties of Fluids: Terminal Velocity MCQ

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Terminal VelocityHardQuestion 6480

Question

Terminal velocity of sphere (r, ρ_s, ρ_f, η, g):
  1. A
    2r²(ρ_s−ρ_f)g/9η
    Correct
  2. B
    r²(ρ_s−ρ_f)g/9η
  3. C
    2r(ρ_s−ρ_f)g/9η
  4. D
    9r²(ρ_s)g/2η

Correct answer

2r²(ρ_s−ρ_f)g/9η

Explanation

v_t = 2r²(ρ_s−ρ_f)g/9η.

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