Question

A cube of edge length 10 cm is just balanced at the interface of two liquids a and b

Answer 1

The force is balanced in vertical direction that is Mg=(pVg)1+(pVg)2.So the value of M= (0.4 g/ml)600cm^3 + (0.6 g/ml)(400 cm^3) since 1 ml = i cm^3

And so the answer is 480gm which is the mass of the cube.