Advertisements
Advertisements
Question
A solid weighs 120 gf in air and and 105 gf when it is completely immersed in water. Calculate the relative density of solid.
Advertisements
Solution
Weight of solid in air , W1 = 120 gf
Weight of solid when completely immersed in water W2 = 105 gf
R.D. of solid = `W_1/(W_1 - W_2) xx "R.D. of water"`
R.D. of solid = `120/(120 - 105) xx 1`
R.D. of solid = 8
APPEARS IN
RELATED QUESTIONS
Relative density of a substance is expressed by comparing the density of that substance with the density of :
The unit of relative density is :
Calculate the mass of a body whose volume is 2 m3 and relative density is 0.52.
A solid weighs 1.5 kgf in air and 0.9 kgf in a liquid of density 1.2 × 103 kg m-3. Calculate R. D. of solid.
A body weighs 20 gf in air and 18.0 gf in water. Calculate the relative density of the material of the body.
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 cube of the lead of side 8 cm and R.D. 10.6 is suspended from the hook of a spring balance. Find the reading of spring balance. The cube is now completely immersed in sugar solution of R.D. 1.4. Calculate the new reading of spring balance.
A cylinder made of copper and aluminium floats in mercury of density 13.6 gem-3, such that 0.26th part of it is below mercury. Find the density of solid.
Calculate the mass of a body whose volume is 2m3 and relative density is 0.52.
