Consider two solid spheres P and Q

PHYSICS · Subjective · CBSE · Physics · Mechanical Properties of Fluids · Mechanical Properties of Fluids

Problem

Consider two solid spheres P and Q, each of density

8\,\text{g cm}^{-3}

and diameters

1\,\text{cm}

and

0.5\,\text{cm}

, respectively. Sphere P is dropped into a liquid of density

0.8\,\text{g cm}^{-3}

and viscosity

\eta=3\,\text{poise}

. Sphere Q is dropped into a liquid of density

1.6\,\text{g cm}^{-3}

and viscosity

\eta=2\,\text{poise}

. The ratio of the terminal velocities of P and Q is _____.