A body of mass 70kg. when completely immersed in water displaces, 20000cm cube.what is the relative density of the material of the body
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volume= 2000 cm3
or 2000 x 10⁻⁶ m₃ or 2 x 10⁻³ m₃
density= 70 kg / 2 x 10 ⁻³
= 5 x 10 ³
relative denisty= denisty of substance/ water density
= 35 x 10³ / 10³
=35
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