Question

A body floats in water with 40℅of its volume outside water. When the same body floats in oil,60℅of its volume remains outside oil. The relative density of the oil is=?

Answer 1

Answer:

Part outside water = 40%

= 2/5

Part immersed in water = 60%

= 3/5

According to the Floatation principle,

v/V = density of substance/density of liquid

= 3/5 = x/1

= 0.6 g/cc = x = Density of the substance

Now, in oil,

Part outside = 60% or, 3/5

Part immersed = 40% or, 2/5

So,

Taking oil Density as x g/cc,

2/5 = 0.6/x

2x = 3

= x = 1.5 g/cc

Oil Density is 1.5 g/cc.

Hope this helps.