Spherical balls of radius R are falling in a viscous fluid of viscosity eta with a velocity v. The retarding viscous force acting on the spherical ball is

Spherical balls of radius R are falling in a viscous fluid of viscosit

1.	Spherical balls of radius R are falling in a viscous fluid of viscosity eta with a velocity v. The retarding viscous force acting on the spherical ball is
Answer» DIRECTLY proportional to R but INVERSELY proportional to V directly proportional to both radius R and velocity v inversely proportional to both radius R and velocity v inversely proportional to R but directly proportional to velocity v Answer :B