A sphere of radius r is dropped in a liquid from its surface. Which of the following graphs is/are correct?

A sphere of radius r is dropped in a liquid of viscosity x. Match the Column-I showing some graph with Column-II giving the names of graphs.

A sphere of radius r is dropped in a liquid of viscosity x. Match the Column-I showing some graph with Column-II giving the names of graphs.

A sphere of radius R and density rho_1 is dropped in a liquid of density sigma . Its terminal velocity is v_1 . If another sphere of radius R and density rho_2 is dropped in the same liquid, its terminal velocity will be:

A sphere of radius R is gently dropped into liquid of viscosity eta in a vertical uniform tube. It attains a terminal velocity v. Another sphere of radius 2 R when dropped into the same liquid, will attain its teriminal velocity.

A sphere of radius R is gently dropped into liquid of viscosity eta in a vertical uniform tube. It attains a terminal velocity v. Another sphere of radius 2R when dropped into the same liquid, will attain its teriminal velocity.

A hollow conducting sphere of radius R has a charge (+Q) on its surface. What is the electric potential within the sphere at a distance r = (R )/(3) from its centre ?

A hollow conducting sphere of radius R has a charge (+Q) on its surface. What is the electric potential within the sphere at a distance r = (R )/(3) from its centre ?

A hollow conducting sphere of radius R has a charge +Q on its surface. What is the electric potential within the sphere at a distance r = R//3 from its centre.