Density and Relative Density and Laws of Flotation

A body floats in water with $40\%$ of its volume outside water. When the same body floats in an oil, $60\%$ of its volume remains outside oil. The relative density of oil is

What is the principle of floatation ? Explain.

What is the application of buoyancy?

What is flotation principle explain with example?

How do you use a pycnometer with a thermometer?

What is a liquid pycnometer?

How does a pycnometer measure density?

What is a pycnometer used for?

A body is submerged in water. It is taken out and then submerged in mercury. What happens to its relative density with respect to the liquid in which it is submerged.

The relative density ..........

What is pycnometer?

What are the applications of principles of flotation?

Relative density is equal to

Which quantity among the following has neither units nor dimensions?

The density of ice and water are $x \mathrm{g}\mathrm{ }{\mathrm{c}\mathrm{m}}^{-3}$ and $y \mathrm{g}\mathrm{ }{\mathrm{cm}}^{-3}$ respectively. If $m$ gram of ice melts, then a change in its volume is

The principle upon which a lactometer works is

The instrument used to measure the purity of milk is

The density of water is maximum at what temperature?

A piece of solid weighs $120 \mathrm{gm}$ in open air, $90 \mathrm{gm}$ in water and $60 \mathrm{gm}$ in a liquid. The relative density of solid and that of liquid are respectively.

A $10 {\mathrm{c}\mathrm{m}}^3$ cube floats in water with a volume of $4 {\mathrm{c}\mathrm{m}}^3$ remaining above the surface. The density of the material form which the cube is made is