Which of the following is true with respect to the Stoke's Law?
(A) It relates to the terminal settling velocity of particles in a viscous medium.
(B) It relates the terminal settling velocity to particle radius and density.
(C) It is applied in the determination of the particle size distribution.
(D) It is applicable only to the spherical particles.
Choose the correct answer from the options given below:
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Stokes' Law assumes:
1. Spherical, rigid, and smooth particles.
2. No interaction between settling particles (low concentration suspension, $< 5\%$).
3. Laminar flow (Reynolds number $< 0.1$).