Question

A body weight 40N in air,36.4N in a liquid and 36N in water . calculate the relative density of solid,relative density of liquid,volume of solid

Answer 1

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1. relative density of body = relative density of body w.r.t water
                                      = weight of body in air / weight loss of body in water
                                      = 40 / (40-36)
                                      = 40/4
                                      = 10
                                      

2. relative density of liquid = relative density of liquid w.r.t water
                                      = relative density of body w.r.t water / relative density of body w.r.t liquid
                                      = weight loss of body in liquid / weight loss of body in water
                                      = (40-36.4) / (40-36)
                                      = 3.6 / 4
                                      = 0.9

3. Volume of liquid can be anything. Just make sure the body completely immersed in the liquid.

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Answer 2

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