A test tube floats to a depth 4 cm in water and to a depth 8 cm in a liquid. The relative density of the liquid is _____.

A cube of side 20 cm is floating on a liquid with 5 cm of the cube outside the liquid. If the density of liquid is 0.8gm//c c then the mass of the cube is

When a loaded test tube floats vertically with 1/3 and 1/4 of the lengths inside two liquids, then the ratio of the densities of the two liquids is

A column of water 40 cm height supports a 30 cm column of an unknown liquid . What is the density of the liquid ?

A test tube of thin walls has some lead shots in it at its bottom and the system floats vertically in water,sinking by a length l_(o) = 10cm . A liquid of density less than that of water, is poured into the tube till the levels inside and outside the tube are even. If the tube now sinks to a length l_(o) = 40cm , the specific gravity of the liquid is___.