Spherical balls of radius R are falling in a viscous fluid of viscosity η with a velocity…

Physics · NEET · NTA Exams — Properties of Solids and Liquids

1. directly proportional to R but inversely proportional to v
2. directly proportional to both radius R and velocity v
3. inversely proportional to both radius  R and velocity v
4. inversely proportional to R but directly proportional to velocity v

Answer

(B) directly proportional to both radius R and velocity v

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