Question

A piece of metal weighs 100 gm in air and 80 gm in a liquid. If the relative density of the liquid is 0.8 , then the relative density of metal is

Answer 1

Answer:―


A piece of metal weighs 100 gm in air and 80 gm in a liquid. If the relative density of the liquid is 0.8 , then the relative density of metal is




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Answer 2

Buoyant force acting on the metal would be difference of weights in air and in water so

= 0.1(9.8)-0.08(9.8)

=0.02(9.8) is the buoyant force

Buoyant force =density of liquid*volume of solid*gravity

By this formula you would get volume of solid

As you know me of solid in air=0.1kg

You could find relative density by the formula mass/volume

Answer will come as

=4000 kg /m³

Make sure of units you use