Question
Download Solution PDFThe terminal velocity (vt) of the spherical rain drop depends on the radius (r) of the spherical rain drop as :
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
The terminal velocity of the spherical raindrop can be defined as,
\(v_t= \frac{2}{9}\frac{gr^2 (ρ_1 - ρ_2)}{η }\) ----- (1)
where, r = radius of the sphere, η = viscosity of the medium, ρ1 = density of sphere & ρ2 = density of medium
From equation (1) we can say that-
Terminal velocity, vt ∝ r2.
Hence, Option 3) is the correct choice.
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