A Hollow Sphere of Negligible Mass and Radius R $\rho$

Multiple Choice

A hollow sphere of negligible mass and radius R is completely filled with a liquid so that its density is $\rho$ You now enlarge the sphere so its radius is 2R and completely fill it with the same liquid. What is the density of the enlarged sphere?

A) $\rho / 8$
B) $\rho / 2$
C) $4 \rho$
D) $\rho$
E) $8 \rho$