Two non-mixing liquids of densities  and
n``\rho `` (n > 1) are put in a container. The height of
each liquid is h. A solid cylinder of length L and
density d is put in this container. The cylinder floats
with its axis vertical and length pL(p < 1) in the
denser liquid. The density d is equal to :-
(1) {1 + (n + 1)p}``\rho `` (2) {2 + (n + 1)p}``\rho ``
(3) {2 + (n - 1)p}``\rho `` (4) {1 + (n - 1)p}``\rho ``