A solid weighs 120 gf in air and 105 gf when it is completely immersed in water. Calculate the relative density of solid.

A solid weighs 32 gf in air and 28.8 gf in water. Find (i) the volume of solid, (ii) R.D. of solid, and (iii) the weight of solid in a liquid of density 0.9 g cm^-3.

A solid weighs 1.5 kgf in air and 0.9 kgf in a liquid of density 1.2 x 10³ kg m^-3. Calculate R.D. of solid.

A jeweller claims that he makes ornament of pure gold of relative density 19.3. He sells a bangle weighing 25.25 gf to a person. The clever customer weighs the bangle when immersed in water and finds that it weighs 23.075 gf in water. With the help of suitable calculations find out whether the ornament is made of pure gold or not.

[Hint — Calculate R.D of material of bangle which comes out to be 11.6]