Consider two solid spheres P and Q each density 8 gm cm^{-3} and diameter 1 cm and 0.5 cm,respectively.Sphere P is dropped into a liquid of density 0.8 gm cm^{-3} and viscosity \eta=3 poiseulles. Sphere Q is dropped into a liquid of density 1.6 gm cm^{-3} and viscosity \eta=2 poiseulles. The ratio of the terminal velocities of P and Q is [JEE Adv 2016 P1]

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