Question

A solid weighs 15N in air 10N in water. Then the relative density (RD) and density of solid is
1) The relative density of stone is 5
2) The density of the stone is 5 g/cc in C.G.S system
3) The density of the stone is 5000 kg/m' in M.K.S system.
4) The relative density of stone is 6.​

Answer 1

Explanation:

Relative density is the ratio between the density of a substance and the density of Water

formula for Relative density

R . D = \frac{weight of solid in air}{Weight of solid in air - weight of solid in water}

Weightofsolidinair−weightofsolidinwater

weightofsolidinair

R.D = W / W-W⁻

where W = Weight of solid in air

W⁻ = weight of solid in water

R.D = 15 /15-10 = 15 /5 = 3

Relative density of liquid is 3